CVE-2024-38539 (GCVE-0-2024-38539)
Vulnerability from cvelistv5
Published
2024-06-19 13:35
Modified
2026-05-11 20:18
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Fix kmemleak in rdma_core observed during blktests nvme/rdma use siw When running blktests nvme/rdma, the following kmemleak issue will appear. kmemleak: Kernel memory leak detector initialized (mempool available:36041) kmemleak: Automatic memory scanning thread started kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 8 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 17 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 4 new suspected memory leaks (see /sys/kernel/debug/kmemleak) unreferenced object 0xffff88855da53400 (size 192): comm "rdma", pid 10630, jiffies 4296575922 hex dump (first 32 bytes): 37 00 00 00 00 00 00 00 c0 ff ff ff 1f 00 00 00 7............... 10 34 a5 5d 85 88 ff ff 10 34 a5 5d 85 88 ff ff .4.].....4.].... backtrace (crc 47f66721): [<ffffffff911251bd>] kmalloc_trace+0x30d/0x3b0 [<ffffffffc2640ff7>] alloc_gid_entry+0x47/0x380 [ib_core] [<ffffffffc2642206>] add_modify_gid+0x166/0x930 [ib_core] [<ffffffffc2643468>] ib_cache_update.part.0+0x6d8/0x910 [ib_core] [<ffffffffc2644e1a>] ib_cache_setup_one+0x24a/0x350 [ib_core] [<ffffffffc263949e>] ib_register_device+0x9e/0x3a0 [ib_core] [<ffffffffc2a3d389>] 0xffffffffc2a3d389 [<ffffffffc2688cd8>] nldev_newlink+0x2b8/0x520 [ib_core] [<ffffffffc2645fe3>] rdma_nl_rcv_msg+0x2c3/0x520 [ib_core] [<ffffffffc264648c>] rdma_nl_rcv_skb.constprop.0.isra.0+0x23c/0x3a0 [ib_core] [<ffffffff9270e7b5>] netlink_unicast+0x445/0x710 [<ffffffff9270f1f1>] netlink_sendmsg+0x761/0xc40 [<ffffffff9249db29>] __sys_sendto+0x3a9/0x420 [<ffffffff9249dc8c>] __x64_sys_sendto+0xdc/0x1b0 [<ffffffff92db0ad3>] do_syscall_64+0x93/0x180 [<ffffffff92e00126>] entry_SYSCALL_64_after_hwframe+0x71/0x79 The root cause: rdma_put_gid_attr is not called when sgid_attr is set to ERR_PTR(-ENODEV).
References
Impacted products
Vendor Product Version
Linux Linux Version: f8ef1be816bf9a0c406c696368c2264a9597a994
Version: f8ef1be816bf9a0c406c696368c2264a9597a994
Version: f8ef1be816bf9a0c406c696368c2264a9597a994
Version: f8ef1be816bf9a0c406c696368c2264a9597a994
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cma: Fix kmemleak in rdma_core observed during blktests nvme/rdma use siw\n\nWhen running blktests nvme/rdma, the following kmemleak issue will appear.\n\nkmemleak: Kernel memory leak detector initialized (mempool available:36041)\nkmemleak: Automatic memory scanning thread started\nkmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)\nkmemleak: 8 new suspected memory leaks (see /sys/kernel/debug/kmemleak)\nkmemleak: 17 new suspected memory leaks (see /sys/kernel/debug/kmemleak)\nkmemleak: 4 new suspected memory leaks (see /sys/kernel/debug/kmemleak)\n\nunreferenced object 0xffff88855da53400 (size 192):\n  comm \"rdma\", pid 10630, jiffies 4296575922\n  hex dump (first 32 bytes):\n    37 00 00 00 00 00 00 00 c0 ff ff ff 1f 00 00 00  7...............\n    10 34 a5 5d 85 88 ff ff 10 34 a5 5d 85 88 ff ff  .4.].....4.]....\n  backtrace (crc 47f66721):\n    [\u003cffffffff911251bd\u003e] kmalloc_trace+0x30d/0x3b0\n    [\u003cffffffffc2640ff7\u003e] alloc_gid_entry+0x47/0x380 [ib_core]\n    [\u003cffffffffc2642206\u003e] add_modify_gid+0x166/0x930 [ib_core]\n    [\u003cffffffffc2643468\u003e] ib_cache_update.part.0+0x6d8/0x910 [ib_core]\n    [\u003cffffffffc2644e1a\u003e] ib_cache_setup_one+0x24a/0x350 [ib_core]\n    [\u003cffffffffc263949e\u003e] ib_register_device+0x9e/0x3a0 [ib_core]\n    [\u003cffffffffc2a3d389\u003e] 0xffffffffc2a3d389\n    [\u003cffffffffc2688cd8\u003e] nldev_newlink+0x2b8/0x520 [ib_core]\n    [\u003cffffffffc2645fe3\u003e] rdma_nl_rcv_msg+0x2c3/0x520 [ib_core]\n    [\u003cffffffffc264648c\u003e]\nrdma_nl_rcv_skb.constprop.0.isra.0+0x23c/0x3a0 [ib_core]\n    [\u003cffffffff9270e7b5\u003e] netlink_unicast+0x445/0x710\n    [\u003cffffffff9270f1f1\u003e] netlink_sendmsg+0x761/0xc40\n    [\u003cffffffff9249db29\u003e] __sys_sendto+0x3a9/0x420\n    [\u003cffffffff9249dc8c\u003e] __x64_sys_sendto+0xdc/0x1b0\n    [\u003cffffffff92db0ad3\u003e] do_syscall_64+0x93/0x180\n    [\u003cffffffff92e00126\u003e] entry_SYSCALL_64_after_hwframe+0x71/0x79\n\nThe root cause: rdma_put_gid_attr is not called when sgid_attr is set\nto ERR_PTR(-ENODEV)."
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