{"id":"CVE-2021-47212","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Update error handler for UCTX and UMEM\n\nIn the fast unload flow, the device state is set to internal error,\nwhich indicates that the driver started the destroy process.\nIn this case, when a destroy command is being executed, it should return\nMLX5_CMD_STAT_OK.\nFix MLX5_CMD_OP_DESTROY_UCTX and MLX5_CMD_OP_DESTROY_UMEM to return OK\ninstead of EIO.\n\nThis fixes a call trace in the umem release process -\n[ 2633.536695] Call Trace:\n[ 2633.537518]  ib_uverbs_remove_one+0xc3/0x140 [ib_uverbs]\n[ 2633.538596]  remove_client_context+0x8b/0xd0 [ib_core]\n[ 2633.539641]  disable_device+0x8c/0x130 [ib_core]\n[ 2633.540615]  __ib_unregister_device+0x35/0xa0 [ib_core]\n[ 2633.541640]  ib_unregister_device+0x21/0x30 [ib_core]\n[ 2633.542663]  __mlx5_ib_remove+0x38/0x90 [mlx5_ib]\n[ 2633.543640]  auxiliary_bus_remove+0x1e/0x30 [auxiliary]\n[ 2633.544661]  device_release_driver_internal+0x103/0x1f0\n[ 2633.545679]  bus_remove_device+0xf7/0x170\n[ 2633.546640]  device_del+0x181/0x410\n[ 2633.547606]  mlx5_rescan_drivers_locked.part.10+0x63/0x160 [mlx5_core]\n[ 2633.548777]  mlx5_unregister_device+0x27/0x40 [mlx5_core]\n[ 2633.549841]  mlx5_uninit_one+0x21/0xc0 [mlx5_core]\n[ 2633.550864]  remove_one+0x69/0xe0 [mlx5_core]\n[ 2633.551819]  pci_device_remove+0x3b/0xc0\n[ 2633.552731]  device_release_driver_internal+0x103/0x1f0\n[ 2633.553746]  unbind_store+0xf6/0x130\n[ 2633.554657]  kernfs_fop_write+0x116/0x190\n[ 2633.555567]  vfs_write+0xa5/0x1a0\n[ 2633.556407]  ksys_write+0x4f/0xb0\n[ 2633.557233]  do_syscall_64+0x5b/0x1a0\n[ 2633.558071]  entry_SYSCALL_64_after_hwframe+0x65/0xca\n[ 2633.559018] RIP: 0033:0x7f9977132648\n[ 2633.559821] Code: 89 02 48 c7 c0 ff ff ff ff eb b3 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 55 6f 2d 00 8b 00 85 c0 75 17 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 41 54 49 89 d4 55\n[ 2633.562332] RSP: 002b:00007fffb1a83888 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\n[ 2633.563472] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f9977132648\n[ 2633.564541] RDX: 000000000000000c RSI: 000055b90546e230 RDI: 0000000000000001\n[ 2633.565596] RBP: 000055b90546e230 R08: 00007f9977406860 R09: 00007f9977a54740\n[ 2633.566653] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f99774056e0\n[ 2633.567692] R13: 000000000000000c R14: 00007f9977400880 R15: 000000000000000c\n[ 2633.568725] ---[ end trace 10b4fe52945e544d ]---","modified":"2026-03-23T05:01:34.409199Z","published":"2024-04-10T19:15:48.597Z","related":["SUSE-SU-2024:1641-1","SUSE-SU-2024:1642-1","SUSE-SU-2024:1644-1","SUSE-SU-2024:1645-1","SUSE-SU-2024:1647-1","SUSE-SU-2024:1650-1","SUSE-SU-2024:1659-1","SUSE-SU-2024:1663-1","SUSE-SU-2025:02334-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/a51a6da375d82aed5c8f83abd13e7d060421bd48"},{"type":"FIX","url":"https://git.kernel.org/stable/c/ba50cd9451f6c49cf0841c0a4a146ff6a2822699"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"5.2"},{"fixed":"5.15.5"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc1"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47212.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}