{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2022-48919", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix double free race when mount fails in cifs_get_root()\n\nWhen cifs_get_root() fails during cifs_smb3_do_mount() we call\ndeactivate_locked_super() which eventually will call delayed_free() which\nwill free the context.\nIn this situation we should not proceed to enter the out: section in\ncifs_smb3_do_mount() and free the same resources a second time.\n\n[Thu Feb 10 12:59:06 2022] BUG: KASAN: use-after-free in rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022] Read of size 8 at addr ffff888364f4d110 by task swapper/1/0\n\n[Thu Feb 10 12:59:06 2022] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G OE 5.17.0-rc3+ #4\n[Thu Feb 10 12:59:06 2022] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.0 12/17/2019\n[Thu Feb 10 12:59:06 2022] Call Trace:\n[Thu Feb 10 12:59:06 2022] \n[Thu Feb 10 12:59:06 2022] dump_stack_lvl+0x5d/0x78\n[Thu Feb 10 12:59:06 2022] print_address_description.constprop.0+0x24/0x150\n[Thu Feb 10 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022] kasan_report.cold+0x7d/0x117\n[Thu Feb 10 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022] __asan_load8+0x86/0xa0\n[Thu Feb 10 12:59:06 2022] rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022] rcu_core+0x547/0xca0\n[Thu Feb 10 12:59:06 2022] ? call_rcu+0x3c0/0x3c0\n[Thu Feb 10 12:59:06 2022] ? __this_cpu_preempt_check+0x13/0x20\n[Thu Feb 10 12:59:06 2022] ? lock_is_held_type+0xea/0x140\n[Thu Feb 10 12:59:06 2022] rcu_core_si+0xe/0x10\n[Thu Feb 10 12:59:06 2022] __do_softirq+0x1d4/0x67b\n[Thu Feb 10 12:59:06 2022] __irq_exit_rcu+0x100/0x150\n[Thu Feb 10 12:59:06 2022] irq_exit_rcu+0xe/0x30\n[Thu Feb 10 12:59:06 2022] sysvec_hyperv_stimer0+0x9d/0xc0\n...\n[Thu Feb 10 12:59:07 2022] Freed by task 58179:\n[Thu Feb 10 12:59:07 2022] kasan_save_stack+0x26/0x50\n[Thu Feb 10 12:59:07 2022] kasan_set_track+0x25/0x30\n[Thu Feb 10 12:59:07 2022] kasan_set_free_info+0x24/0x40\n[Thu Feb 10 12:59:07 2022] ____kasan_slab_free+0x137/0x170\n[Thu Feb 10 12:59:07 2022] __kasan_slab_free+0x12/0x20\n[Thu Feb 10 12:59:07 2022] slab_free_freelist_hook+0xb3/0x1d0\n[Thu Feb 10 12:59:07 2022] kfree+0xcd/0x520\n[Thu Feb 10 12:59:07 2022] cifs_smb3_do_mount+0x149/0xbe0 [cifs]\n[Thu Feb 10 12:59:07 2022] smb3_get_tree+0x1a0/0x2e0 [cifs]\n[Thu Feb 10 12:59:07 2022] vfs_get_tree+0x52/0x140\n[Thu Feb 10 12:59:07 2022] path_mount+0x635/0x10c0\n[Thu Feb 10 12:59:07 2022] __x64_sys_mount+0x1bf/0x210\n[Thu Feb 10 12:59:07 2022] do_syscall_64+0x5c/0xc0\n[Thu Feb 10 12:59:07 2022] entry_SYSCALL_64_after_hwframe+0x44/0xae\n\n[Thu Feb 10 12:59:07 2022] Last potentially related work creation:\n[Thu Feb 10 12:59:07 2022] kasan_save_stack+0x26/0x50\n[Thu Feb 10 12:59:07 2022] __kasan_record_aux_stack+0xb6/0xc0\n[Thu Feb 10 12:59:07 2022] kasan_record_aux_stack_noalloc+0xb/0x10\n[Thu Feb 10 12:59:07 2022] call_rcu+0x76/0x3c0\n[Thu Feb 10 12:59:07 2022] cifs_umount+0xce/0xe0 [cifs]\n[Thu Feb 10 12:59:07 2022] cifs_kill_sb+0xc8/0xe0 [cifs]\n[Thu Feb 10 12:59:07 2022] deactivate_locked_super+0x5d/0xd0\n[Thu Feb 10 12:59:07 2022] cifs_smb3_do_mount+0xab9/0xbe0 [cifs]\n[Thu Feb 10 12:59:07 2022] smb3_get_tree+0x1a0/0x2e0 [cifs]\n[Thu Feb 10 12:59:07 2022] vfs_get_tree+0x52/0x140\n[Thu Feb 10 12:59:07 2022] path_mount+0x635/0x10c0\n[Thu Feb 10 12:59:07 2022] __x64_sys_mount+0x1bf/0x210\n[Thu Feb 10 12:59:07 2022] do_syscall_64+0x5c/0xc0\n[Thu Feb 10 12:59:07 2022] entry_SYSCALL_64_after_hwframe+0x44/0xae" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "1da177e4c3f4", "version_value": "da834d6c1147" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "4.9.305", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.14.270", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.233", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.183", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.104", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.27", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.16.13", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.17", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/da834d6c1147c7519a9e55b510a03b7055104749", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/da834d6c1147c7519a9e55b510a03b7055104749" }, { "url": "https://git.kernel.org/stable/c/147a0e71ccf96df9fc8c2ac500829d8e423ef02c", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/147a0e71ccf96df9fc8c2ac500829d8e423ef02c" }, { "url": "https://git.kernel.org/stable/c/2fe0e281f7ad0a62259649764228227dd6b2561d", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/2fe0e281f7ad0a62259649764228227dd6b2561d" }, { "url": "https://git.kernel.org/stable/c/e208668ef7ba23efcbf76a8200cab8deee501c4d", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/e208668ef7ba23efcbf76a8200cab8deee501c4d" }, { "url": "https://git.kernel.org/stable/c/df9db1a2af37f39ad1653c7b9b0d275d72d0bc67", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/df9db1a2af37f39ad1653c7b9b0d275d72d0bc67" }, { "url": "https://git.kernel.org/stable/c/546d60859ecf13380fcabcbeace53a5971493a2b", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/546d60859ecf13380fcabcbeace53a5971493a2b" }, { "url": "https://git.kernel.org/stable/c/563431c1f3c8f2230e4a9c445fa23758742bc4f0", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/563431c1f3c8f2230e4a9c445fa23758742bc4f0" }, { "url": "https://git.kernel.org/stable/c/3d6cc9898efdfb062efb74dc18cfc700e082f5d5", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/3d6cc9898efdfb062efb74dc18cfc700e082f5d5" } ] }, "generator": { "engine": "bippy-c9c4e1df01b2" } }