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              "version": "4.2"
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              "versionType": "semver"
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              "versionType": "semver"
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        },
        {
          "url": "https://git.kernel.org/stable/c/6270b1a5dab94665d7adce3dc78bc9066ed28bdd"
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      "title": "drm/amdgpu: Limit BO list entry count to prevent resource exhaustion",
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    "dateReserved": "2026-01-13T15:37:46.021Z",
    "dateUpdated": "2026-06-01T16:11:15.659Z",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: i801: Revert \"i2c: i801: replace acpi_lock with I2C bus lock\"\n\nThis reverts commit f707d6b9e7c18f669adfdb443906d46cfbaaa0c1.\n\nUnder rare circumstances, multiple udev threads can collect i801 device\ninfo on boot and walk i801_acpi_io_handler somewhat concurrently. The\nfirst will note the area is reserved by acpi to prevent further touches.\nThis ultimately causes the area to be deregistered. The second will\nenter i801_acpi_io_handler after the area is unregistered but before a\ncheck can be made that the area is unregistered. i2c_lock_bus relies on\nthe now unregistered area containing lock_ops to lock the bus. The end\nresult is a kernel panic on boot with the following backtrace;\n\n[   14.971872] ioatdma 0000:09:00.2: enabling device (0100 -\u003e 0102)\n[   14.971873] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[   14.971880] #PF: supervisor read access in kernel mode\n[   14.971884] #PF: error_code(0x0000) - not-present page\n[   14.971887] PGD 0 P4D 0\n[   14.971894] Oops: 0000 [#1] PREEMPT SMP PTI\n[   14.971900] CPU: 5 PID: 956 Comm: systemd-udevd Not tainted 5.14.0-611.5.1.el9_7.x86_64 #1\n[   14.971905] Hardware name: XXXXXXXXXXXXXXXXXXXXXXX BIOS 1.20.10.SV91 01/30/2023\n[   14.971908] RIP: 0010:i801_acpi_io_handler+0x2d/0xb0 [i2c_i801]\n[   14.971929] Code: 00 00 49 8b 40 20 41 57 41 56 4d 8b b8 30 04 00 00 49 89 ce 41 55 41 89 d5 41 54 49 89 f4 be 02 00 00 00 55 4c 89 c5 53 89 fb \u003c48\u003e 8b 00 4c 89 c7 e8 18 61 54 e9 80 bd 80 04 00 00 00 75 09 4c 3b\n[   14.971933] RSP: 0018:ffffbaa841483838 EFLAGS: 00010282\n[   14.971938] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff9685e01ba568\n[   14.971941] RDX: 0000000000000008 RSI: 0000000000000002 RDI: 0000000000000000\n[   14.971944] RBP: ffff9685ca22f028 R08: ffff9685ca22f028 R09: ffff9685ca22f028\n[   14.971948] R10: 000000000000000b R11: 0000000000000580 R12: 0000000000000580\n[   14.971951] R13: 0000000000000008 R14: ffff9685e01ba568 R15: ffff9685c222f000\n[   14.971954] FS:  00007f8287c0ab40(0000) GS:ffff96a47f940000(0000) knlGS:0000000000000000\n[   14.971959] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   14.971963] CR2: 0000000000000000 CR3: 0000000168090001 CR4: 00000000003706f0\n[   14.971966] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[   14.971968] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[   14.971972] Call Trace:\n[   14.971977]  \u003cTASK\u003e\n[   14.971981]  ? show_trace_log_lvl+0x1c4/0x2df\n[   14.971994]  ? show_trace_log_lvl+0x1c4/0x2df\n[   14.972003]  ? acpi_ev_address_space_dispatch+0x16e/0x3c0\n[   14.972014]  ? __die_body.cold+0x8/0xd\n[   14.972021]  ? page_fault_oops+0x132/0x170\n[   14.972028]  ? exc_page_fault+0x61/0x150\n[   14.972036]  ? asm_exc_page_fault+0x22/0x30\n[   14.972045]  ? i801_acpi_io_handler+0x2d/0xb0 [i2c_i801]\n[   14.972061]  acpi_ev_address_space_dispatch+0x16e/0x3c0\n[   14.972069]  ? __pfx_i801_acpi_io_handler+0x10/0x10 [i2c_i801]\n[   14.972085]  acpi_ex_access_region+0x5b/0xd0\n[   14.972093]  acpi_ex_field_datum_io+0x73/0x2e0\n[   14.972100]  acpi_ex_read_data_from_field+0x8e/0x230\n[   14.972106]  acpi_ex_resolve_node_to_value+0x23d/0x310\n[   14.972114]  acpi_ds_evaluate_name_path+0xad/0x110\n[   14.972121]  acpi_ds_exec_end_op+0x321/0x510\n[   14.972127]  acpi_ps_parse_loop+0xf7/0x680\n[   14.972136]  acpi_ps_parse_aml+0x17a/0x3d0\n[   14.972143]  acpi_ps_execute_method+0x137/0x270\n[   14.972150]  acpi_ns_evaluate+0x1f4/0x2e0\n[   14.972158]  acpi_evaluate_object+0x134/0x2f0\n[   14.972164]  acpi_evaluate_integer+0x50/0xe0\n[   14.972173]  ? vsnprintf+0x24b/0x570\n[   14.972181]  acpi_ac_get_state.part.0+0x23/0x70\n[   14.972189]  get_ac_property+0x4e/0x60\n[   14.972195]  power_supply_show_property+0x90/0x1f0\n[   14.972205]  add_prop_uevent+0x29/0x90\n[   14.972213]  power_supply_uevent+0x109/0x1d0\n[   14.972222]  dev_uevent+0x10e/0x2f0\n[   14.972228]  uevent_show+0x8e/0x100\n[   14.972236]  dev_attr_show+0x19\n---truncated---"
        }
      ],
      "providerMetadata": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/9507f9953a2a5647eb42668d0c243fdbd7e72954"
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        {
          "url": "https://git.kernel.org/stable/c/c726273044a5a8308a889d19d6884135c0f3321d"
        },
        {
          "url": "https://git.kernel.org/stable/c/cfc69c2e6c699c96949f7b0455195b0bfb7dc715"
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      ],
      "title": "i2c: i801: Revert \"i2c: i801: replace acpi_lock with I2C bus lock\"",
      "x_generator": {
        "engine": "bippy-1.2.0"
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          "vendor": "Linux",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rsi: Don\u0027t default to -EOPNOTSUPP in rsi_mac80211_config\n\nThis triggers a WARN_ON in ieee80211_hw_conf_init and isn\u0027t the expected\nbehavior from the driver - other drivers default to 0 too."
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      "title": "mtd: rawnand: serialize lock/unlock against other NAND operations",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: blk-cgroup: fix use-after-free in cgwb_release_workfn()\n\ncgwb_release_workfn() calls css_put(wb-\u003eblkcg_css) and then later accesses\nwb-\u003eblkcg_css again via blkcg_unpin_online().  If css_put() drops the last\nreference, the blkcg can be freed asynchronously (css_free_rwork_fn -\u003e\nblkcg_css_free -\u003e kfree) before blkcg_unpin_online() dereferences the\npointer to access blkcg-\u003eonline_pin, resulting in a use-after-free:\n\n  BUG: KASAN: slab-use-after-free in blkcg_unpin_online (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 block/blk-cgroup.c:1367)\n  Write of size 4 at addr ff11000117aa6160 by task kworker/71:1/531\n   Workqueue: cgwb_release cgwb_release_workfn\n   Call Trace:\n    \u003cTASK\u003e\n     blkcg_unpin_online (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 block/blk-cgroup.c:1367)\n     cgwb_release_workfn (mm/backing-dev.c:629)\n     process_scheduled_works (kernel/workqueue.c:3278 kernel/workqueue.c:3385)\n\n   Freed by task 1016:\n    kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6246 mm/slub.c:6561)\n    css_free_rwork_fn (kernel/cgroup/cgroup.c:5542)\n    process_scheduled_works (kernel/workqueue.c:3302 kernel/workqueue.c:3385)\n\n** Stack based on commit 66672af7a095 (\"Add linux-next specific files\nfor 20260410\")\n\nI am seeing this crash sporadically in Meta fleet across multiple kernel\nversions.  A full reproducer is available at:\nhttps://github.com/leitao/debug/blob/main/reproducers/repro_blkcg_uaf.sh\n\n(The race window is narrow.  To make it easily reproducible, inject a\nmsleep(100) between css_put() and blkcg_unpin_online() in\ncgwb_release_workfn().  With that delay and a KASAN-enabled kernel, the\nreproducer triggers the splat reliably in less than a second.)\n\nFix this by moving blkcg_unpin_online() before css_put(), so the\ncgwb\u0027s CSS reference keeps the blkcg alive while blkcg_unpin_online()\naccesses it."
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        },
        {
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        {
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                {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix side-effect bug in match_char() macro usage\n\nThe match_char() macro evaluates its character parameter multiple\ntimes when traversing differential encoding chains. When invoked\nwith *str++, the string pointer advances on each iteration of the\ninner do-while loop, causing the DFA to check different characters\nat each iteration and therefore skip input characters.\nThis results in out-of-bounds reads when the pointer advances past\nthe input buffer boundary.\n\n[   94.984676] ==================================================================\n[   94.985301] BUG: KASAN: slab-out-of-bounds in aa_dfa_match+0x5ae/0x760\n[   94.985655] Read of size 1 at addr ffff888100342000 by task file/976\n\n[   94.986319] CPU: 7 UID: 1000 PID: 976 Comm: file Not tainted 6.19.0-rc7-next-20260127 #1 PREEMPT(lazy)\n[   94.986322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[   94.986329] Call Trace:\n[   94.986341]  \u003cTASK\u003e\n[   94.986347]  dump_stack_lvl+0x5e/0x80\n[   94.986374]  print_report+0xc8/0x270\n[   94.986384]  ? aa_dfa_match+0x5ae/0x760\n[   94.986388]  kasan_report+0x118/0x150\n[   94.986401]  ? aa_dfa_match+0x5ae/0x760\n[   94.986405]  aa_dfa_match+0x5ae/0x760\n[   94.986408]  __aa_path_perm+0x131/0x400\n[   94.986418]  aa_path_perm+0x219/0x2f0\n[   94.986424]  apparmor_file_open+0x345/0x570\n[   94.986431]  security_file_open+0x5c/0x140\n[   94.986442]  do_dentry_open+0x2f6/0x1120\n[   94.986450]  vfs_open+0x38/0x2b0\n[   94.986453]  ? may_open+0x1e2/0x2b0\n[   94.986466]  path_openat+0x231b/0x2b30\n[   94.986469]  ? __x64_sys_openat+0xf8/0x130\n[   94.986477]  do_file_open+0x19d/0x360\n[   94.986487]  do_sys_openat2+0x98/0x100\n[   94.986491]  __x64_sys_openat+0xf8/0x130\n[   94.986499]  do_syscall_64+0x8e/0x660\n[   94.986515]  ? count_memcg_events+0x15f/0x3c0\n[   94.986526]  ? srso_alias_return_thunk+0x5/0xfbef5\n[   94.986540]  ? handle_mm_fault+0x1639/0x1ef0\n[   94.986551]  ? vma_start_read+0xf0/0x320\n[   94.986558]  ? srso_alias_return_thunk+0x5/0xfbef5\n[   94.986561]  ? srso_alias_return_thunk+0x5/0xfbef5\n[   94.986563]  ? fpregs_assert_state_consistent+0x50/0xe0\n[   94.986572]  ? srso_alias_return_thunk+0x5/0xfbef5\n[   94.986574]  ? arch_exit_to_user_mode_prepare+0x9/0xb0\n[   94.986587]  ? srso_alias_return_thunk+0x5/0xfbef5\n[   94.986588]  ? irqentry_exit+0x3c/0x590\n[   94.986595]  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[   94.986597] RIP: 0033:0x7fda4a79c3ea\n\nFix by extracting the character value before invoking match_char,\nensuring single evaluation per outer loop."
        }
      ],
      "metrics": [
        {
          "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",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ninet: fully convert sk-\u003esk_rx_dst to RCU rules\n\nsyzbot reported various issues around early demux,\none being included in this changelog [1]\n\nsk-\u003esk_rx_dst is using RCU protection without clearly\ndocumenting it.\n\nAnd following sequences in tcp_v4_do_rcv()/tcp_v6_do_rcv()\nare not following standard RCU rules.\n\n[a]    dst_release(dst);\n[b]    sk-\u003esk_rx_dst = NULL;\n\nThey look wrong because a delete operation of RCU protected\npointer is supposed to clear the pointer before\nthe call_rcu()/synchronize_rcu() guarding actual memory freeing.\n\nIn some cases indeed, dst could be freed before [b] is done.\n\nWe could cheat by clearing sk_rx_dst before calling\ndst_release(), but this seems the right time to stick\nto standard RCU annotations and debugging facilities.\n\n[1]\nBUG: KASAN: use-after-free in dst_check include/net/dst.h:470 [inline]\nBUG: KASAN: use-after-free in tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792\nRead of size 2 at addr ffff88807f1cb73a by task syz-executor.5/9204\n\nCPU: 0 PID: 9204 Comm: syz-executor.5 Not tainted 5.16.0-rc5-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247\n __kasan_report mm/kasan/report.c:433 [inline]\n kasan_report.cold+0x83/0xdf mm/kasan/report.c:450\n dst_check include/net/dst.h:470 [inline]\n tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792\n ip_rcv_finish_core.constprop.0+0x15de/0x1e80 net/ipv4/ip_input.c:340\n ip_list_rcv_finish.constprop.0+0x1b2/0x6e0 net/ipv4/ip_input.c:583\n ip_sublist_rcv net/ipv4/ip_input.c:609 [inline]\n ip_list_rcv+0x34e/0x490 net/ipv4/ip_input.c:644\n __netif_receive_skb_list_ptype net/core/dev.c:5508 [inline]\n __netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5556\n __netif_receive_skb_list net/core/dev.c:5608 [inline]\n netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5699\n gro_normal_list net/core/dev.c:5853 [inline]\n gro_normal_list net/core/dev.c:5849 [inline]\n napi_complete_done+0x1f1/0x880 net/core/dev.c:6590\n virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline]\n virtnet_poll+0xca2/0x11b0 drivers/net/virtio_net.c:1557\n __napi_poll+0xaf/0x440 net/core/dev.c:7023\n napi_poll net/core/dev.c:7090 [inline]\n net_rx_action+0x801/0xb40 net/core/dev.c:7177\n __do_softirq+0x29b/0x9c2 kernel/softirq.c:558\n invoke_softirq kernel/softirq.c:432 [inline]\n __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637\n irq_exit_rcu+0x5/0x20 kernel/softirq.c:649\n common_interrupt+0x52/0xc0 arch/x86/kernel/irq.c:240\n asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629\nRIP: 0033:0x7f5e972bfd57\nCode: 39 d1 73 14 0f 1f 80 00 00 00 00 48 8b 50 f8 48 83 e8 08 48 39 ca 77 f3 48 39 c3 73 3e 48 89 13 48 8b 50 f8 48 89 38 49 8b 0e \u003c48\u003e 8b 3e 48 83 c3 08 48 83 c6 08 eb bc 48 39 d1 72 9e 48 39 d0 73\nRSP: 002b:00007fff8a413210 EFLAGS: 00000283\nRAX: 00007f5e97108990 RBX: 00007f5e97108338 RCX: ffffffff81d3aa45\nRDX: ffffffff81d3aa45 RSI: 00007f5e97108340 RDI: ffffffff81d3aa45\nRBP: 00007f5e97107eb8 R08: 00007f5e97108d88 R09: 0000000093c2e8d9\nR10: 0000000000000000 R11: 0000000000000000 R12: 00007f5e97107eb0\nR13: 00007f5e97108338 R14: 00007f5e97107ea8 R15: 0000000000000019\n \u003c/TASK\u003e\n\nAllocated by task 13:\n kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38\n kasan_set_track mm/kasan/common.c:46 [inline]\n set_alloc_info mm/kasan/common.c:434 [inline]\n __kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:467\n kasan_slab_alloc include/linux/kasan.h:259 [inline]\n slab_post_alloc_hook mm/slab.h:519 [inline]\n slab_alloc_node mm/slub.c:3234 [inline]\n slab_alloc mm/slub.c:3242 [inline]\n kmem_cache_alloc+0x202/0x3a0 mm/slub.c:3247\n dst_alloc+0x146/0x1f0 net/core/dst.c:92\n rt_dst_alloc+0x73/0x430 net/ipv4/route.c:1613\n ip_route_input_slow+0x1817/0x3a20 net/ipv4/route.c:234\n---truncated---"
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.1",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc1",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: digital: Bounds check NFC-A cascade depth in SDD response handler\n\nThe NFC-A anti-collision cascade in digital_in_recv_sdd_res() appends 3\nor 4 bytes to target-\u003enfcid1 on each round, but the number of cascade\nrounds is controlled entirely by the peer device.  The peer sets the\ncascade tag in the SDD_RES (deciding 3 vs 4 bytes) and the\ncascade-incomplete bit in the SEL_RES (deciding whether another round\nfollows).\n\nISO 14443-3 limits NFC-A to three cascade levels and target-\u003enfcid1 is\nsized accordingly (NFC_NFCID1_MAXSIZE = 10), but nothing in the driver\nactually enforces this.  This means a malicious peer can keep the\ncascade running, writing past the heap-allocated nfc_target with each\nround.\n\nFix this by rejecting the response when the accumulated UID would exceed\nthe buffer.\n\nCommit e329e71013c9 (\"NFC: nci: Bounds check struct nfc_target arrays\")\nfixed similar missing checks against the same field on the NCI path."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-01T16:12:48.372Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9ba6bb09e00b922d902f684f575779e5433fe6e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/f83b399aa05a0712e3b1569a30d3d90b3533d2ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/20663102c14566e900e1d2f679e30b7f1694f387"
        },
        {
          "url": "https://git.kernel.org/stable/c/2819f34e08bdffb6f06a51c67948ec5737fb166a"
        },
        {
          "url": "https://git.kernel.org/stable/c/1bec5698b55aa2be5c3b983dba657c01d0fd3dbc"
        },
        {
          "url": "https://git.kernel.org/stable/c/5a59bf70c38ee1eb4be03bab830bbc3a6f0bd1f1"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d9d9bf3565271ca7ab9c716a94e87296177e7ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/cc024a3de265ef6c58957f4990eccb9f806208cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/46ce8be2ced389bccd84bcc04a12cf2f4d0c22d1"
        }
      ],
      "title": "NFC: digital: Bounds check NFC-A cascade depth in SDD response handler",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31622",
    "datePublished": "2026-04-24T14:42:39.916Z",
    "dateReserved": "2026-03-09T15:48:24.124Z",
    "dateUpdated": "2026-06-01T16:12:48.372Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}