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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata\n\nFollowing concurrent processes:\n\n          P1(drop cache)                P2(kworker)\ndrop_caches_sysctl_handler\n drop_slab\n  shrink_slab\n   down_read(\u0026shrinker_rwsem)  - LOCK A\n   do_shrink_slab\n    super_cache_scan\n     prune_icache_sb\n      dispose_list\n       evict\n        ext4_evict_inode\n\t ext4_clear_inode\n\t  ext4_discard_preallocations\n\t   ext4_mb_load_buddy_gfp\n\t    ext4_mb_init_cache\n\t     ext4_read_block_bitmap_nowait\n\t      ext4_read_bh_nowait\n\t       submit_bh\n\t        dm_submit_bio\n\t\t                 do_worker\n\t\t\t\t  process_deferred_bios\n\t\t\t\t   commit\n\t\t\t\t    metadata_operation_failed\n\t\t\t\t     dm_pool_abort_metadata\n\t\t\t\t      down_write(\u0026pmd-\u003eroot_lock) - LOCK B\n\t\t                      __destroy_persistent_data_objects\n\t\t\t\t       dm_block_manager_destroy\n\t\t\t\t        dm_bufio_client_destroy\n\t\t\t\t         unregister_shrinker\n\t\t\t\t\t  down_write(\u0026shrinker_rwsem)\n\t\t thin_map                            |\n\t\t  dm_thin_find_block                 \u2193\n\t\t   down_read(\u0026pmd-\u003eroot_lock) --\u003e ABBA deadlock\n\n, which triggers hung task:\n\n[   76.974820] INFO: task kworker/u4:3:63 blocked for more than 15 seconds.\n[   76.976019]       Not tainted 6.1.0-rc4-00011-g8f17dd350364-dirty #910\n[   76.978521] task:kworker/u4:3    state:D stack:0     pid:63    ppid:2\n[   76.978534] Workqueue: dm-thin do_worker\n[   76.978552] Call Trace:\n[   76.978564]  __schedule+0x6ba/0x10f0\n[   76.978582]  schedule+0x9d/0x1e0\n[   76.978588]  rwsem_down_write_slowpath+0x587/0xdf0\n[   76.978600]  down_write+0xec/0x110\n[   76.978607]  unregister_shrinker+0x2c/0xf0\n[   76.978616]  dm_bufio_client_destroy+0x116/0x3d0\n[   76.978625]  dm_block_manager_destroy+0x19/0x40\n[   76.978629]  __destroy_persistent_data_objects+0x5e/0x70\n[   76.978636]  dm_pool_abort_metadata+0x8e/0x100\n[   76.978643]  metadata_operation_failed+0x86/0x110\n[   76.978649]  commit+0x6a/0x230\n[   76.978655]  do_worker+0xc6e/0xd90\n[   76.978702]  process_one_work+0x269/0x630\n[   76.978714]  worker_thread+0x266/0x630\n[   76.978730]  kthread+0x151/0x1b0\n[   76.978772] INFO: task test.sh:2646 blocked for more than 15 seconds.\n[   76.979756]       Not tainted 6.1.0-rc4-00011-g8f17dd350364-dirty #910\n[   76.982111] task:test.sh         state:D stack:0     pid:2646  ppid:2459\n[   76.982128] Call Trace:\n[   76.982139]  __schedule+0x6ba/0x10f0\n[   76.982155]  schedule+0x9d/0x1e0\n[   76.982159]  rwsem_down_read_slowpath+0x4f4/0x910\n[   76.982173]  down_read+0x84/0x170\n[   76.982177]  dm_thin_find_block+0x4c/0xd0\n[   76.982183]  thin_map+0x201/0x3d0\n[   76.982188]  __map_bio+0x5b/0x350\n[   76.982195]  dm_submit_bio+0x2b6/0x930\n[   76.982202]  __submit_bio+0x123/0x2d0\n[   76.982209]  submit_bio_noacct_nocheck+0x101/0x3e0\n[   76.982222]  submit_bio_noacct+0x389/0x770\n[   76.982227]  submit_bio+0x50/0xc0\n[   76.982232]  submit_bh_wbc+0x15e/0x230\n[   76.982238]  submit_bh+0x14/0x20\n[   76.982241]  ext4_read_bh_nowait+0xc5/0x130\n[   76.982247]  ext4_read_block_bitmap_nowait+0x340/0xc60\n[   76.982254]  ext4_mb_init_cache+0x1ce/0xdc0\n[   76.982259]  ext4_mb_load_buddy_gfp+0x987/0xfa0\n[   76.982263]  ext4_discard_preallocations+0x45d/0x830\n[   76.982274]  ext4_clear_inode+0x48/0xf0\n[   76.982280]  ext4_evict_inode+0xcf/0xc70\n[   76.982285]  evict+0x119/0x2b0\n[   76.982290]  dispose_list+0x43/0xa0\n[   76.982294]  prune_icache_sb+0x64/0x90\n[   76.982298]  super_cache_scan+0x155/0x210\n[   76.982303]  do_shrink_slab+0x19e/0x4e0\n[   76.982310]  shrink_slab+0x2bd/0x450\n[   76.982317]  drop_slab+0xcc/0x1a0\n[   76.982323]  drop_caches_sysctl_handler+0xb7/0xe0\n[   76.982327]  proc_sys_call_handler+0x1bc/0x300\n[   76.982331]  proc_sys_write+0x17/0x20\n[   76.982334]  vfs_write+0x3d3/0x570\n[   76.982342]  ksys_write+0x73/0x160\n[   76.982347]  __x64_sys_write+0x1e/0x30\n[   76.982352]  do_syscall_64+0x35/0x80\n[   76.982357]  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nFunct\n---truncated---"
        }
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:21:34.417Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "references": [
        {
          "url": "https://git.kernel.org/stable/c/200aa33b5d781e7c0fa6c0c7db9dbcc3f574ce8f"
        },
        {
          "url": "https://git.kernel.org/stable/c/7e37578069737b04955c71dd85db8a3bc2709eff"
        },
        {
          "url": "https://git.kernel.org/stable/c/f8c26c33fef588ee54852cffa7cbb9f9d9869405"
        },
        {
          "url": "https://git.kernel.org/stable/c/2d891cc5a1706b6908bceb56af7176a463ee6d62"
        },
        {
          "url": "https://git.kernel.org/stable/c/cdf7a39bcc427febbfe3c3b9fe829825ead96c27"
        },
        {
          "url": "https://git.kernel.org/stable/c/8111964f1b8524c4bb56b02cd9c7a37725ea21fd"
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      ],
      "title": "dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50549",
    "datePublished": "2025-10-07T15:21:12.006Z",
    "dateReserved": "2025-10-07T15:15:38.668Z",
    "dateUpdated": "2026-05-11T19:21:34.417Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: imx: scu: use _safe list iterator to avoid a use after free\n\nThis loop is freeing \"clk\" so it needs to use list_for_each_entry_safe().\nOtherwise it dereferences a freed variable to get the next item on the\nloop."
        }
      ],
      "metrics": [
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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            {
              "lang": "en",
              "value": "AV:L - The defect is in the i.MX8QXP/QM/DXL SCU platform clock-provider probe path (`imx8qxp_clk_probe()` \u2192 `imx_clk_scu_unregister()`), entered only through the local OF/device-driver model; no network, adjacent-network, or remote-peer data reaches a clock registration routine, and even the hypothetical re-entry routes (module load, DT overlay) require local system access.\nAC:H - The error branch is only taken when `of_clk_add_hw_provider()` fails, which after ruling out `of_clk_set_defaults()` (no in-tree i.MX8 SCU DT node carries `assigned-clocks`/`assigned-clock-rates`) reduces to a ~40-byte GFP_KERNEL `kzalloc()` failing during boot-time probe \u2014 small GFP_KERNEL allocations retry and OOM-kill rather than fail, and an attacker cannot induce memory pressure inside the boot-time probe window, so the precondition is genuinely outside attacker control.\nPR:L - There is no capability check anywhere along the path itself and the memory-pressure condition that would provoke the allocation failure needs no privilege at all; although the only explicit re-probe triggers (module load, DTB/overlay) are root-gated and `suppress_bind_attrs = true` removes the sysfs bind route, the uncertainty is resolved toward the lower privilege bar rather than PR:H.\nUI:N - The use-after-free fires automatically inside the driver\u0027s own probe error unwind; no administrator or victim must mount a filesystem, open a device, or take any other action for the freed-list walk to execute.\nS:U - The freed slab object, the wild pointer dereference, and the resulting corruption are all confined to kernel heap and the clk framework\u0027s own bookkeeping within a single security authority; no VM, container, IOMMU, or sandbox boundary is crossed.\nC:H - This is a genuine use-after-free read: `clk-\u003enode.next` is read from a kmalloc-64 object already returned to the allocator with no lock held, so a concurrently reallocated occupant\u0027s contents are consumed as a list pointer and its `clk-\u003ehw` field is dereferenced by `clk_unregister()`, which additionally prints `clk-\u003ecore-\u003ename` from that wild pointer to dmesg via `pr_err`/`pr_warn` \u2014 per kernel UAF treatment this warrants High.\nI:H - Once the loop follows a stale or reallocated `next` pointer, `clk_hw_unregister()` \u2192 `clk_unregister()` performs out-of-lifetime writes through it (`clk-\u003ecore-\u003eops = \u0026clk_nodrv_ops`, `hlist_del_init()`, `kref_put()`), and the loop body then `kfree()`s that attacker-influenceable address \u2014 an arbitrary-free plus wild-write primitive suitable for control-flow-relevant heap corruption.\nA:H - With `init_on_free` the freed `node.next` reads back as NULL and with SLUB poisoning as 0x6b6b..., either way oopsing immediately, and a reallocated object yields wild-pointer dereferences and freelist corruption during boot \u2014 on the embedded/automotive i.MX8QXP/QM boards this driver targets, commonly booted with panic_on_oops, that leaves the board unbootable."
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      "title": "clk: imx: scu: use _safe list iterator to avoid a use after free",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53572",
    "datePublished": "2025-10-04T15:17:13.089Z",
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    "dateUpdated": "2026-08-05T09:14:54.320Z",
    "state": "PUBLISHED"
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          "url": "https://git.kernel.org/stable/c/28412b489b088fb88dff488305fd4e56bd47f6e4"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfprobe: Release rethook after the ftrace_ops is unregistered\n\nWhile running bpf selftests it\u0027s possible to get following fault:\n\n  general protection fault, probably for non-canonical address \\\n  0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI\n  ...\n  Call Trace:\n   \u003cTASK\u003e\n   fprobe_handler+0xc1/0x270\n   ? __pfx_bpf_testmod_init+0x10/0x10\n   ? __pfx_bpf_testmod_init+0x10/0x10\n   ? bpf_fentry_test1+0x5/0x10\n   ? bpf_fentry_test1+0x5/0x10\n   ? bpf_testmod_init+0x22/0x80\n   ? do_one_initcall+0x63/0x2e0\n   ? rcu_is_watching+0xd/0x40\n   ? kmalloc_trace+0xaf/0xc0\n   ? do_init_module+0x60/0x250\n   ? __do_sys_finit_module+0xac/0x120\n   ? do_syscall_64+0x37/0x90\n   ? entry_SYSCALL_64_after_hwframe+0x72/0xdc\n   \u003c/TASK\u003e\n\nIn unregister_fprobe function we can\u0027t release fp-\u003erethook while it\u0027s\npossible there are some of its users still running on another cpu.\n\nMoving rethook_free call after fp-\u003eops is unregistered with\nunregister_ftrace_function call."
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              "value": "AV:L - The vulnerability is reached only through the local `bpf()` syscall \u2014 attaching a `kprobe_multi` return link and then closing its fd (`bpf_kprobe_multi_link_release()` \u2192 `unregister_fprobe()`). There is no network-facing path into fprobe/rethook.\nAC:L - The attacker controls both sides of the race: they pick which functions are traced (choosing hot paths, or calling them in tight loops on other CPUs), choose when to close the link fd, and can widen the window arbitrarily by contending `ftrace_lock`, which `unregister_ftrace_function()` blocks on before the ops is ever removed, so an RCU grace period reliably elapses while the handler is still live.\nPR:L - Attaching a `kprobe_multi` return probe needs CAP_BPF+CAP_PERFMON, which are delegatable non-root capabilities routinely granted to unprivileged observability/tracing daemons and containers (Cilium, Falco, profilers) rather than full administrative control of the system. Compromise of any such non-root component yields the primitive.\nUI:N - The attacker performs the entire sequence \u2014 attach the fprobe, close the link, keep the traced functions hot \u2014 with no action from any other user or victim process.\nS:U - The use-after-free corrupts kernel heap and kernel control flow within the same security authority; there is no crossing of a VM, IOMMU, or hypervisor boundary.\nC:H - The freed `struct rethook` is dereferenced after reallocation, giving an arbitrary read via `READ_ONCE(head-\u003enext)` in `freelist_try_get()`, and `arch_rethook_prepare()` plus `fpr-\u003eentry_ip` writes leak live kernel text/return addresses into attacker-observable memory, defeating KASLR and enabling broad memory disclosure.\nI:H - The UAF yields an atomic RMW write at an attacker-chosen address (`atomic_try_cmpxchg_acquire(\u0026head-\u003erefs, ...)`), controlled pointer writes via `fpr-\u003eentry_ip`/`entry_parent_ip`, and ultimately an indirect call through the attacker-controlled `rhn-\u003erethook-\u003ehandler` in `rethook_trampoline_handler()` \u2014 a direct kernel control-flow hijack and privilege escalation.\nA:H - Even unweaponized, the bug produces an immediate general protection fault on a non-canonical poisoned pointer inside `fprobe_handler()`, as shown in the commit\u0027s oops, panicking the kernel; it can be re-triggered at will."
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: b2c2: Fix use-after-free causing by irq_check_work in flexcop_pci_remove\n\nThe original code uses cancel_delayed_work() in flexcop_pci_remove(), which\ndoes not guarantee that the delayed work item irq_check_work has fully\ncompleted if it was already running. This leads to use-after-free scenarios\nwhere flexcop_pci_remove() may free the flexcop_device while irq_check_work\nis still active and attempts to dereference the device.\n\nA typical race condition is illustrated below:\n\nCPU 0 (remove)                         | CPU 1 (delayed work callback)\nflexcop_pci_remove()                   | flexcop_pci_irq_check_work()\n  cancel_delayed_work()                |\n  flexcop_device_kfree(fc_pci-\u003efc_dev) |\n                                       |   fc = fc_pci-\u003efc_dev; // UAF\n\nThis is confirmed by a KASAN report:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in __run_timer_base.part.0+0x7d7/0x8c0\nWrite of size 8 at addr ffff8880093aa8c8 by task bash/135\n...\nCall Trace:\n \u003cIRQ\u003e\n dump_stack_lvl+0x55/0x70\n print_report+0xcf/0x610\n ? __run_timer_base.part.0+0x7d7/0x8c0\n kasan_report+0xb8/0xf0\n ? __run_timer_base.part.0+0x7d7/0x8c0\n __run_timer_base.part.0+0x7d7/0x8c0\n ? __pfx___run_timer_base.part.0+0x10/0x10\n ? __pfx_read_tsc+0x10/0x10\n ? ktime_get+0x60/0x140\n ? lapic_next_event+0x11/0x20\n ? clockevents_program_event+0x1d4/0x2a0\n run_timer_softirq+0xd1/0x190\n handle_softirqs+0x16a/0x550\n irq_exit_rcu+0xaf/0xe0\n sysvec_apic_timer_interrupt+0x70/0x80\n \u003c/IRQ\u003e\n...\n\nAllocated by task 1:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x7f/0x90\n __kmalloc_noprof+0x1be/0x460\n flexcop_device_kmalloc+0x54/0xe0\n flexcop_pci_probe+0x1f/0x9d0\n local_pci_probe+0xdc/0x190\n pci_device_probe+0x2fe/0x470\n really_probe+0x1ca/0x5c0\n __driver_probe_device+0x248/0x310\n driver_probe_device+0x44/0x120\n __driver_attach+0xd2/0x310\n bus_for_each_dev+0xed/0x170\n bus_add_driver+0x208/0x500\n driver_register+0x132/0x460\n do_one_initcall+0x89/0x300\n kernel_init_freeable+0x40d/0x720\n kernel_init+0x1a/0x150\n ret_from_fork+0x10c/0x1a0\n ret_from_fork_asm+0x1a/0x30\n\nFreed by task 135:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3a/0x60\n __kasan_slab_free+0x3f/0x50\n kfree+0x137/0x370\n flexcop_device_kfree+0x32/0x50\n pci_device_remove+0xa6/0x1d0\n device_release_driver_internal+0xf8/0x210\n pci_stop_bus_device+0x105/0x150\n pci_stop_and_remove_bus_device_locked+0x15/0x30\n remove_store+0xcc/0xe0\n kernfs_fop_write_iter+0x2c3/0x440\n vfs_write+0x871/0xd70\n ksys_write+0xee/0x1c0\n do_syscall_64+0xac/0x280\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n...\n\nReplace cancel_delayed_work() with cancel_delayed_work_sync() to ensure\nthat the delayed work item is properly canceled and any executing delayed\nwork has finished before the device memory is deallocated.\n\nThis bug was initially identified through static analysis. To reproduce\nand test it, I simulated the B2C2 FlexCop PCI device in QEMU and introduced\nartificial delays within the flexcop_pci_irq_check_work() function to\nincrease the likelihood of triggering the bug."
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      "references": [
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          "url": "https://git.kernel.org/stable/c/607010d07b8a509b01ed15ea12744acac6536a98"
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        {
          "url": "https://git.kernel.org/stable/c/bde8173def374230226e8554efb51b271f4066ec"
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        },
        {
          "url": "https://git.kernel.org/stable/c/01e03fb7db419d39e18d6090d4873c1bff103914"
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      ],
      "title": "media: b2c2: Fix use-after-free causing by irq_check_work in flexcop_pci_remove",
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    "cveId": "CVE-2025-39996",
    "datePublished": "2025-10-15T07:58:21.049Z",
    "dateReserved": "2025-04-16T07:20:57.151Z",
    "dateUpdated": "2026-05-11T21:40:27.487Z",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Sync IRQ works before buffer destruction\n\nIf something was written to the buffer just before destruction,\nit may be possible (maybe not in a real system, but it did\nhappen in ARCH=um with time-travel) to destroy the ringbuffer\nbefore the IRQ work ran, leading this KASAN report (or a crash\nwithout KASAN):\n\n    BUG: KASAN: slab-use-after-free in irq_work_run_list+0x11a/0x13a\n    Read of size 8 at addr 000000006d640a48 by task swapper/0\n\n    CPU: 0 PID: 0 Comm: swapper Tainted: G        W  O       6.3.0-rc1 #7\n    Stack:\n     60c4f20f 0c203d48 41b58ab3 60f224fc\n     600477fa 60f35687 60c4f20f 601273dd\n     00000008 6101eb00 6101eab0 615be548\n    Call Trace:\n     [\u003c60047a58\u003e] show_stack+0x25e/0x282\n     [\u003c60c609e0\u003e] dump_stack_lvl+0x96/0xfd\n     [\u003c60c50d4c\u003e] print_report+0x1a7/0x5a8\n     [\u003c603078d3\u003e] kasan_report+0xc1/0xe9\n     [\u003c60308950\u003e] __asan_report_load8_noabort+0x1b/0x1d\n     [\u003c60232844\u003e] irq_work_run_list+0x11a/0x13a\n     [\u003c602328b4\u003e] irq_work_tick+0x24/0x34\n     [\u003c6017f9dc\u003e] update_process_times+0x162/0x196\n     [\u003c6019f335\u003e] tick_sched_handle+0x1a4/0x1c3\n     [\u003c6019fd9e\u003e] tick_sched_timer+0x79/0x10c\n     [\u003c601812b9\u003e] __hrtimer_run_queues.constprop.0+0x425/0x695\n     [\u003c60182913\u003e] hrtimer_interrupt+0x16c/0x2c4\n     [\u003c600486a3\u003e] um_timer+0x164/0x183\n     [...]\n\n    Allocated by task 411:\n     save_stack_trace+0x99/0xb5\n     stack_trace_save+0x81/0x9b\n     kasan_save_stack+0x2d/0x54\n     kasan_set_track+0x34/0x3e\n     kasan_save_alloc_info+0x25/0x28\n     ____kasan_kmalloc+0x8b/0x97\n     __kasan_kmalloc+0x10/0x12\n     __kmalloc+0xb2/0xe8\n     load_elf_phdrs+0xee/0x182\n     [...]\n\n    The buggy address belongs to the object at 000000006d640800\n     which belongs to the cache kmalloc-1k of size 1024\n    The buggy address is located 584 bytes inside of\n     freed 1024-byte region [000000006d640800, 000000006d640c00)\n\nAdd the appropriate irq_work_sync() so the work finishes before\nthe buffers are destroyed.\n\nPrior to the commit in the Fixes tag below, there was only a\nsingle global IRQ work, so this issue didn\u0027t exist."
        }
      ],
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        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is reached through local filesystem operations on tracefs \u2014 poll/read on an instance\u0027s trace_pipe to arm waiters_pending, writes that commit ring buffer events, and rmdir of the instance directory to free the buffer. No network or remote peer input is involved.\nAC:L - The attacker controls both sides of the race, arming the waiter, generating the commit that queues the irq_work, and issuing the rmdir that frees the buffer, and can retry the loop indefinitely. On architectures where arch_irq_work_raise() falls back to the timer tick (the __weak stub in kernel/irq_work.c), the queued work is not drained for up to a full jiffy, giving a millisecond-scale window.\nPR:L - An unprivileged local account is sufficient wherever tracefs access is delegated, which is standard on Android/Perfetto, ChromeOS and developer/instrumentation deployments that grant a tracing group access to /sys/kernel/tracing/instances. No real root or capability in the initial namespace is required by the code path itself, consistent with all other scored kernel/trace CVEs.\nUI:N - The attacker performs every step (arming the waiter, committing an event, removing the instance) from its own threads. No action by any other user or victim process is needed.\nS:U - The use-after-free occurs in kernel slab memory and any resulting compromise stays within the kernel\u0027s own security authority. No VM, IOMMU or sandbox boundary is crossed.\nC:H - This is a use-after-free on a kmalloc-1k object that is read back by irq_work_run_list()/irq_work_single(); combined with the hijacked work-\u003efunc(work) indirect call it yields an arbitrary kernel read primitive once the slot is reallocated with sprayed data.\nI:H - irq_work_single() writes into the freed object via atomic_set() and atomic_cmpxchg() on node.a_flags, and then calls work-\u003efunc(work) \u2014 a function pointer sourced from freed, attacker-reallocatable memory \u2014 giving control-flow hijack and arbitrary write.\nA:H - Even unexploited, the dangling irq_work node causes a slab-use-after-free that crashes the kernel from hardirq context, as shown by the KASAN splat in irq_work_run_list()/irq_work_tick() in the commit message."
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/histograms: Add histograms to hist_vars if they have referenced variables\n\nHist triggers can have referenced variables without having direct\nvariables fields. This can be the case if referenced variables are added\nfor trigger actions. In this case the newly added references will not\nhave field variables. Not taking such referenced variables into\nconsideration can result in a bug where it would be possible to remove\nhist trigger with variables being refenced. This will result in a bug\nthat is easily reproducable like so\n\n$ cd /sys/kernel/tracing\n$ echo \u0027synthetic_sys_enter char[] comm; long id\u0027 \u003e\u003e synthetic_events\n$ echo \u0027hist:keys=common_pid.execname,id.syscall:vals=hitcount:comm=common_pid.execname\u0027 \u003e\u003e events/raw_syscalls/sys_enter/trigger\n$ echo \u0027hist:keys=common_pid.execname,id.syscall:onmatch(raw_syscalls.sys_enter).synthetic_sys_enter($comm, id)\u0027 \u003e\u003e events/raw_syscalls/sys_enter/trigger\n$ echo \u0027!hist:keys=common_pid.execname,id.syscall:vals=hitcount:comm=common_pid.execname\u0027 \u003e\u003e events/raw_syscalls/sys_enter/trigger\n\n[  100.263533] ==================================================================\n[  100.264634] BUG: KASAN: slab-use-after-free in resolve_var_refs+0xc7/0x180\n[  100.265520] Read of size 8 at addr ffff88810375d0f0 by task bash/439\n[  100.266320]\n[  100.266533] CPU: 2 PID: 439 Comm: bash Not tainted 6.5.0-rc1 #4\n[  100.267277] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-20220807_005459-localhost 04/01/2014\n[  100.268561] Call Trace:\n[  100.268902]  \u003cTASK\u003e\n[  100.269189]  dump_stack_lvl+0x4c/0x70\n[  100.269680]  print_report+0xc5/0x600\n[  100.270165]  ? resolve_var_refs+0xc7/0x180\n[  100.270697]  ? kasan_complete_mode_report_info+0x80/0x1f0\n[  100.271389]  ? resolve_var_refs+0xc7/0x180\n[  100.271913]  kasan_report+0xbd/0x100\n[  100.272380]  ? resolve_var_refs+0xc7/0x180\n[  100.272920]  __asan_load8+0x71/0xa0\n[  100.273377]  resolve_var_refs+0xc7/0x180\n[  100.273888]  event_hist_trigger+0x749/0x860\n[  100.274505]  ? kasan_save_stack+0x2a/0x50\n[  100.275024]  ? kasan_set_track+0x29/0x40\n[  100.275536]  ? __pfx_event_hist_trigger+0x10/0x10\n[  100.276138]  ? ksys_write+0xd1/0x170\n[  100.276607]  ? do_syscall_64+0x3c/0x90\n[  100.277099]  ? entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[  100.277771]  ? destroy_hist_data+0x446/0x470\n[  100.278324]  ? event_hist_trigger_parse+0xa6c/0x3860\n[  100.278962]  ? __pfx_event_hist_trigger_parse+0x10/0x10\n[  100.279627]  ? __kasan_check_write+0x18/0x20\n[  100.280177]  ? mutex_unlock+0x85/0xd0\n[  100.280660]  ? __pfx_mutex_unlock+0x10/0x10\n[  100.281200]  ? kfree+0x7b/0x120\n[  100.281619]  ? ____kasan_slab_free+0x15d/0x1d0\n[  100.282197]  ? event_trigger_write+0xac/0x100\n[  100.282764]  ? __kasan_slab_free+0x16/0x20\n[  100.283293]  ? __kmem_cache_free+0x153/0x2f0\n[  100.283844]  ? sched_mm_cid_remote_clear+0xb1/0x250\n[  100.284550]  ? __pfx_sched_mm_cid_remote_clear+0x10/0x10\n[  100.285221]  ? event_trigger_write+0xbc/0x100\n[  100.285781]  ? __kasan_check_read+0x15/0x20\n[  100.286321]  ? __bitmap_weight+0x66/0xa0\n[  100.286833]  ? _find_next_bit+0x46/0xe0\n[  100.287334]  ? task_mm_cid_work+0x37f/0x450\n[  100.287872]  event_triggers_call+0x84/0x150\n[  100.288408]  trace_event_buffer_commit+0x339/0x430\n[  100.289073]  ? ring_buffer_event_data+0x3f/0x60\n[  100.292189]  trace_event_raw_event_sys_enter+0x8b/0xe0\n[  100.295434]  syscall_trace_enter.constprop.0+0x18f/0x1b0\n[  100.298653]  syscall_enter_from_user_mode+0x32/0x40\n[  100.301808]  do_syscall_64+0x1a/0x90\n[  100.304748]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[  100.307775] RIP: 0033:0x7f686c75c1cb\n[  100.310617] Code: 73 01 c3 48 8b 0d 65 3c 10 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 21 00 00 00 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 35 3c 10 00 f7 d8 64 89 01 48\n[  100.317847] RSP: 002b:00007ffc60137a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000021\n[  100.321200] RA\n---truncated---"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched: Fix sched_numa_find_nth_cpu() if mask offline\n\nsched_numa_find_nth_cpu() uses a bsearch to look for the \u0027closest\u0027\nCPU in sched_domains_numa_masks and given cpus mask. However they\nmight not intersect if all CPUs in the cpus mask are offline. bsearch\nwill return NULL in that case, bail out instead of dereferencing a\nbogus pointer.\n\nThe previous behaviour lead to this bug when using maxcpus=4 on an\nrk3399 (LLLLbb) (i.e. booting with all big CPUs offline):\n\n[    1.422922] Unable to handle kernel paging request at virtual address ffffff8000000000\n[    1.423635] Mem abort info:\n[    1.423889]   ESR = 0x0000000096000006\n[    1.424227]   EC = 0x25: DABT (current EL), IL = 32 bits\n[    1.424715]   SET = 0, FnV = 0\n[    1.424995]   EA = 0, S1PTW = 0\n[    1.425279]   FSC = 0x06: level 2 translation fault\n[    1.425735] Data abort info:\n[    1.425998]   ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000\n[    1.426499]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[    1.426952]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[    1.427428] swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000004a9f000\n[    1.428038] [ffffff8000000000] pgd=18000000f7fff403, p4d=18000000f7fff403, pud=18000000f7fff403, pmd=0000000000000000\n[    1.429014] Internal error: Oops: 0000000096000006 [#1]  SMP\n[    1.429525] Modules linked in:\n[    1.429813] CPU: 3 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.17.0-rc4-dirty #343 PREEMPT\n[    1.430559] Hardware name: Pine64 RockPro64 v2.1 (DT)\n[    1.431012] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[    1.431634] pc : sched_numa_find_nth_cpu+0x2a0/0x488\n[    1.432094] lr : sched_numa_find_nth_cpu+0x284/0x488\n[    1.432543] sp : ffffffc084e1b960\n[    1.432843] x29: ffffffc084e1b960 x28: ffffff80078a8800 x27: ffffffc0846eb1d0\n[    1.433495] x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000\n[    1.434144] x23: 0000000000000000 x22: fffffffffff7f093 x21: ffffffc081de6378\n[    1.434792] x20: 0000000000000000 x19: 0000000ffff7f093 x18: 00000000ffffffff\n[    1.435441] x17: 3030303866666666 x16: 66663d736b73616d x15: ffffffc104e1b5b7\n[    1.436091] x14: 0000000000000000 x13: ffffffc084712860 x12: 0000000000000372\n[    1.436739] x11: 0000000000000126 x10: ffffffc08476a860 x9 : ffffffc084712860\n[    1.437389] x8 : 00000000ffffefff x7 : ffffffc08476a860 x6 : 0000000000000000\n[    1.438036] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000\n[    1.438683] x2 : 0000000000000000 x1 : ffffffc0846eb000 x0 : ffffff8000407b68\n[    1.439332] Call trace:\n[    1.439559]  sched_numa_find_nth_cpu+0x2a0/0x488 (P)\n[    1.440016]  smp_call_function_any+0xc8/0xd0\n[    1.440416]  armv8_pmu_init+0x58/0x27c\n[    1.440770]  armv8_cortex_a72_pmu_init+0x20/0x2c\n[    1.441199]  arm_pmu_device_probe+0x1e4/0x5e8\n[    1.441603]  armv8_pmu_device_probe+0x1c/0x28\n[    1.442007]  platform_probe+0x5c/0xac\n[    1.442347]  really_probe+0xbc/0x298\n[    1.442683]  __driver_probe_device+0x78/0x12c\n[    1.443087]  driver_probe_device+0xdc/0x160\n[    1.443475]  __driver_attach+0x94/0x19c\n[    1.443833]  bus_for_each_dev+0x74/0xd4\n[    1.444190]  driver_attach+0x24/0x30\n[    1.444525]  bus_add_driver+0xe4/0x208\n[    1.444874]  driver_register+0x60/0x128\n[    1.445233]  __platform_driver_register+0x24/0x30\n[    1.445662]  armv8_pmu_driver_init+0x28/0x4c\n[    1.446059]  do_one_initcall+0x44/0x25c\n[    1.446416]  kernel_init_freeable+0x1dc/0x3bc\n[    1.446820]  kernel_init+0x20/0x1d8\n[    1.447151]  ret_from_fork+0x10/0x20\n[    1.447493] Code: 90022e21 f000e5f5 910de2b5 2a1703e2 (f8767803)\n[    1.448040] ---[ end trace 0000000000000000 ]---\n[    1.448483] note: swapper/0[1] exited with preempt_count 1\n[    1.449047] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b\n[    1.449741] SMP: stopping secondary CPUs\n[    1.450105] Kernel Offset: disabled\n[    1.450419] CPU features: 0x000000,00080000,20002001,0400421b\n[    \n---truncated---"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()\n\nThere is a memory leaks problem reported by kmemleak:\n\nunreferenced object 0xffff888102007a00 (size 128):\n  comm \"ubirsvol\", pid 32090, jiffies 4298464136 (age 2361.231s)\n  hex dump (first 32 bytes):\nff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................\nff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................\n  backtrace:\n[\u003cffffffff8176cecd\u003e] __kmalloc+0x4d/0x150\n[\u003cffffffffa02a9a36\u003e] ubi_eba_create_table+0x76/0x170 [ubi]\n[\u003cffffffffa029764e\u003e] ubi_resize_volume+0x1be/0xbc0 [ubi]\n[\u003cffffffffa02a3321\u003e] ubi_cdev_ioctl+0x701/0x1850 [ubi]\n[\u003cffffffff81975d2d\u003e] __x64_sys_ioctl+0x11d/0x170\n[\u003cffffffff83c142a5\u003e] do_syscall_64+0x35/0x80\n[\u003cffffffff83e0006a\u003e] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nThis is due to a mismatch between create and destroy interfaces, and\nin detail that \"new_eba_tbl\" created by ubi_eba_create_table() but\ndestroyed by kfree(), while will causing \"new_eba_tbl-\u003eentries\" not\nfreed.\n\nFix it by replacing kfree(new_eba_tbl) with\nubi_eba_destroy_table(new_eba_tbl)"
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              "value": "AV:A - The parsed data is NCI notification payload whose RF-specific and activation parameters (ATS/RATS length byte, ATR_RES length, tech-specific params) originate from the contactless peer, so an attacker with a spoofed card or NFC emulator in proximity of a phone/POS/embedded reader supplies the malformed lengths. NFC proximity is Adjacent per kernel scoring guidance (a local unprivileged N_NCI-ldisc path also exists, but is strictly lower severity).\nAC:L - The attacker directly controls the length byte versus actual payload length and can present the malformed card/frame repeatedly until the target polls it; no race, no unpredictable memory-layout precondition is required.\nPR:N - No credentials or account on the target are needed \u2014 NFC polling activates and parses the notification automatically, and on the local variant `NCIUARTSETDRIVER` in nci_uart_tty_ioctl() has no capability check at all.\nUI:N - The NFC stack polls and processes discovery/activation notifications autonomously; the attacker brings the hostile device into range and the victim performs no action.\nS:U - The over-read, the write-back in the credits handler, and the leaked data all stay within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Tens of bytes past the payload \u2014 uninitialized slab tailroom and skb_shared_info, which holds kernel pointers \u2014 are copied into nfcid1/sens_res/ATS and exported to userspace via NFC netlink attributes, yielding stale-heap and kernel-pointer disclosure usable for KASLR defeat.\nI:H - `nci_core_conn_credits_ntf_packet()` writes masked bytes back into memory beyond the validated payload for up to 10 entries and adds an out-of-bounds byte into conn_info-\u003ecredits_cnt, and unvalidated data populates ndev state (nci_ver, manufact_id, remote_gb, credits), giving attacker-shapeable kernel memory/state corruption.\nA:H - Out-of-bounds slab reads can hit a redzone/adjacent object and oops (KASAN/panic_on_oops), and the commit itself notes the resulting dropped packets leave nci_request() blocking until timeout with repeated dmesg flooding, degrading the NFC stack."
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              "value": "AV:L - The trigger is a local `sendmsg()`/`sendto()` on an AF_PACKET socket with a crafted virtio_net_hdr, driving the local TX GSO segmentation path into `gso_make_checksum()` with a negative length. No remote peer input reaches `do_csum()` with a negative length.\nAC:L - The attacker fully controls `csum_start`, `csum_offset` and `gso_size` in the virtio_net_hdr and thus deterministically produces the negative `plen`; there is no race, no memory-layout dependency, and no reliance on unusual configuration for the underlying arm64 kernel to hit the bad path.\nPR:L - AF_PACKET socket creation checks `ns_capable(net-\u003euser_ns, CAP_NET_RAW)`, so an unprivileged user obtains it with `unshare -Urn`, which also confers CAP_NET_ADMIN in that netns to disable offloads and force software GSO segmentation.\nUI:N - The attacker triggers the whole sequence from its own process with a socket and a single send; no victim action or cooperation is involved.\nS:U - The faulty read and the undefined shift both occur within kernel context on behalf of the calling task, with no crossing of a VM, IOMMU, or other security-authority boundary.\nC:H - The fix addresses an out-of-bounds read in the checksum primitive with an attacker-influenced negative length, and the resulting checksum is emitted in the outgoing packet, exposing a function of memory outside the intended range; sufficiently negative lengths wrap `len + offset - 8` positive and let the main loop walk arbitrary kernel memory.\nI:N - `do_csum()` performs only loads; the sole downstream effect is a bogus checksum value written into the attacker\u0027s own outgoing packet, with no modification of kernel memory or other principals\u0027 data.\nA:H - The condition is reported as a KASAN slab-out-of-bounds BUG, which panics kernels built with KASAN or running `panic_on_warn`/`kasan.fault=panic`, and an unbounded negative length drives the 64-byte-stride loop off the end of the object into unmapped memory, oopsing the kernel."
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: do not assume skb mac_header is set\n\nDrivers must not assume in their ndo_start_xmit() that\nskbs have their mac_header set. skb-\u003edata is all what is needed.\n\nbonding seems to be one of the last offender as caught by syzbot:\n\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 skb_mac_offset include/linux/skbuff.h:2913 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_xmit_hash drivers/net/bonding/bond_main.c:4170 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5149 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_3ad_xor_xmit drivers/net/bonding/bond_main.c:5186 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 __bond_start_xmit drivers/net/bonding/bond_main.c:5442 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_start_xmit+0x14ab/0x19d0 drivers/net/bonding/bond_main.c:5470\nModules linked in:\nCPU: 1 PID: 12155 Comm: syz-executor.3 Not tainted 6.1.30-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023\nRIP: 0010:skb_mac_header include/linux/skbuff.h:2907 [inline]\nRIP: 0010:skb_mac_offset include/linux/skbuff.h:2913 [inline]\nRIP: 0010:bond_xmit_hash drivers/net/bonding/bond_main.c:4170 [inline]\nRIP: 0010:bond_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5149 [inline]\nRIP: 0010:bond_3ad_xor_xmit drivers/net/bonding/bond_main.c:5186 [inline]\nRIP: 0010:__bond_start_xmit drivers/net/bonding/bond_main.c:5442 [inline]\nRIP: 0010:bond_start_xmit+0x14ab/0x19d0 drivers/net/bonding/bond_main.c:5470\nCode: 8b 7c 24 30 e8 76 dd 1a 01 48 85 c0 74 0d 48 89 c3 e8 29 67 2e fe e9 15 ef ff ff e8 1f 67 2e fe e9 10 ef ff ff e8 15 67 2e fe \u003c0f\u003e 0b e9 45 f8 ff ff e8 09 67 2e fe e9 dc fa ff ff e8 ff 66 2e fe\nRSP: 0018:ffffc90002fff6e0 EFLAGS: 00010283\nRAX: ffffffff835874db RBX: 000000000000ffff RCX: 0000000000040000\nRDX: ffffc90004dcf000 RSI: 00000000000000b5 RDI: 00000000000000b6\nRBP: ffffc90002fff8b8 R08: ffffffff83586d16 R09: ffffffff83586584\nR10: 0000000000000007 R11: ffff8881599fc780 R12: ffff88811b6a7b7e\nR13: 1ffff110236d4f6f R14: ffff88811b6a7ac0 R15: 1ffff110236d4f76\nFS: 00007f2e9eb47700(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b2e421000 CR3: 000000010e6d4000 CR4: 00000000003526e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003cTASK\u003e\n[\u003cffffffff8471a49f\u003e] netdev_start_xmit include/linux/netdevice.h:4925 [inline]\n[\u003cffffffff8471a49f\u003e] __dev_direct_xmit+0x4ef/0x850 net/core/dev.c:4380\n[\u003cffffffff851d845b\u003e] dev_direct_xmit include/linux/netdevice.h:3043 [inline]\n[\u003cffffffff851d845b\u003e] packet_direct_xmit+0x18b/0x300 net/packet/af_packet.c:284\n[\u003cffffffff851c7472\u003e] packet_snd net/packet/af_packet.c:3112 [inline]\n[\u003cffffffff851c7472\u003e] packet_sendmsg+0x4a22/0x64d0 net/packet/af_packet.c:3143\n[\u003cffffffff8467a4b2\u003e] sock_sendmsg_nosec net/socket.c:716 [inline]\n[\u003cffffffff8467a4b2\u003e] sock_sendmsg net/socket.c:736 [inline]\n[\u003cffffffff8467a4b2\u003e] __sys_sendto+0x472/0x5f0 net/socket.c:2139\n[\u003cffffffff8467a715\u003e] __do_sys_sendto net/socket.c:2151 [inline]\n[\u003cffffffff8467a715\u003e] __se_sys_sendto net/socket.c:2147 [inline]\n[\u003cffffffff8467a715\u003e] __x64_sys_sendto+0xe5/0x100 net/socket.c:2147\n[\u003cffffffff8553071f\u003e] do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n[\u003cffffffff8553071f\u003e] do_syscall_64+0x2f/0x50 arch/x86/entry/common.c:80\n[\u003cffffffff85600087\u003e] entry_SYSCALL_64_after_hwframe+0x63/0xcd"
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param()\n\nSyzkaller reports a null-ptr-deref bug as follows:\n======================================================\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nRIP: 0010:hugetlbfs_parse_param+0x1dd/0x8e0 fs/hugetlbfs/inode.c:1380\n[...]\nCall Trace:\n \u003cTASK\u003e\n vfs_parse_fs_param fs/fs_context.c:148 [inline]\n vfs_parse_fs_param+0x1f9/0x3c0 fs/fs_context.c:129\n vfs_parse_fs_string+0xdb/0x170 fs/fs_context.c:191\n generic_parse_monolithic+0x16f/0x1f0 fs/fs_context.c:231\n do_new_mount fs/namespace.c:3036 [inline]\n path_mount+0x12de/0x1e20 fs/namespace.c:3370\n do_mount fs/namespace.c:3383 [inline]\n __do_sys_mount fs/namespace.c:3591 [inline]\n __se_sys_mount fs/namespace.c:3568 [inline]\n __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n [...]\n \u003c/TASK\u003e\n======================================================\n\nAccording to commit \"vfs: parse: deal with zero length string value\",\nkernel will set the param-\u003estring to null pointer in vfs_parse_fs_string()\nif fs string has zero length.\n\nYet the problem is that, hugetlbfs_parse_param() will dereference the\nparam-\u003estring, without checking whether it is a null pointer.  To be more\nspecific, if hugetlbfs_parse_param() parses an illegal mount parameter,\nsuch as \"size=,\", kernel will constructs struct fs_parameter with null\npointer in vfs_parse_fs_string(), then passes this struct fs_parameter to\nhugetlbfs_parse_param(), which triggers the above null-ptr-deref bug.\n\nThis patch solves it by adding sanity check on param-\u003estring\nin hugetlbfs_parse_param()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:17:26.783Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fa71639873518e3587632ae58e25e4a96b57fa90"
        },
        {
          "url": "https://git.kernel.org/stable/c/dcd28191be9bbf307ba51a5b485773a55b0037c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a8862820cbf1f18dca4f3b4c289d88561b3a384"
        },
        {
          "url": "https://git.kernel.org/stable/c/965e8f8ae0f642b5528f5a82b7bcaf15a659d5bd"
        },
        {
          "url": "https://git.kernel.org/stable/c/f2207145693ae5697a7b59e2add4b92f9e5b0e3c"
        },
        {
          "url": "https://git.kernel.org/stable/c/26215b7ee923b9251f7bb12c4e5f09dc465d35f2"
        }
      ],
      "title": "hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50334",
    "datePublished": "2025-09-15T14:49:48.608Z",
    "dateReserved": "2025-09-15T14:18:36.816Z",
    "dateUpdated": "2026-05-11T19:17:26.783Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}