| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: Don't leak cfid when reconnect races with open_cached_dir\n\nopen_cached_dir() may either race with the tcon reconnection even before\ncompound_send_recv() or directly trigger a reconnection via\nSMB2_open_init() or SMB_query_info_init().\n\nThe reconnection process invokes invalidate_all_cached_dirs() via\ncifs_mark_open_files_invalid(), which removes all cfids from the\ncfids->entries list but doesn't drop a ref if has_lease isn't true. This\nresults in the currently-being-constructed cfid not being on the list,\nbut still having a refcount of 2. It leaks if returned from\nopen_cached_dir().\n\nFix this by setting cfid->has_lease when the ref is actually taken; the\ncfid will not be used by other threads until it has a valid time.\n\nAddresses these kmemleaks:\n\nunreferenced object 0xffff8881090c4000 (size 1024):\n comm \"bash\", pid 1860, jiffies 4295126592\n hex dump (first 32 bytes):\n 00 01 00 00 00 00 ad de 22 01 00 00 00 00 ad de ........\".......\n 00 ca 45 22 81 88 ff ff f8 dc 4f 04 81 88 ff ff ..E\"......O.....\n backtrace (crc 6f58c20f):\n [<ffffffff8b895a1e>] __kmalloc_cache_noprof+0x2be/0x350\n [<ffffffff8bda06e3>] open_cached_dir+0x993/0x1fb0\n [<ffffffff8bdaa750>] cifs_readdir+0x15a0/0x1d50\n [<ffffffff8b9a853f>] iterate_dir+0x28f/0x4b0\n [<ffffffff8b9a9aed>] __x64_sys_getdents64+0xfd/0x200\n [<ffffffff8cf6da05>] do_syscall_64+0x95/0x1a0\n [<ffffffff8d00012f>] entry_SYSCALL_64_after_hwframe+0x76/0x7e\nunreferenced object 0xffff8881044fdcf8 (size 8):\n comm \"bash\", pid 1860, jiffies 4295126592\n hex dump (first 8 bytes):\n 00 cc cc cc cc cc cc cc ........\n backtrace (crc 10c106a9):\n [<ffffffff8b89a3d3>] __kmalloc_node_track_caller_noprof+0x363/0x480\n [<ffffffff8b7d7256>] kstrdup+0x36/0x60\n [<ffffffff8bda0700>] open_cached_dir+0x9b0/0x1fb0\n [<ffffffff8bdaa750>] cifs_readdir+0x15a0/0x1d50\n [<ffffffff8b9a853f>] iterate_dir+0x28f/0x4b0\n [<ffffffff8b9a9aed>] __x64_sys_getdents64+0xfd/0x200\n [<ffffffff8cf6da05>] do_syscall_64+0x95/0x1a0\n [<ffffffff8d00012f>] entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nAnd addresses these BUG splats when unmounting the SMB filesystem:\n\nBUG: Dentry ffff888140590ba0{i=1000000000080,n=/} still in use (2) [unmount of cifs cifs]\nWARNING: CPU: 3 PID: 3433 at fs/dcache.c:1536 umount_check+0xd0/0x100\nModules linked in:\nCPU: 3 UID: 0 PID: 3433 Comm: bash Not tainted 6.12.0-rc4-g850925a8133c-dirty #49\nHardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020\nRIP: 0010:umount_check+0xd0/0x100\nCode: 8d 7c 24 40 e8 31 5a f4 ff 49 8b 54 24 40 41 56 49 89 e9 45 89 e8 48 89 d9 41 57 48 89 de 48 c7 c7 80 e7 db ac e8 f0 72 9a ff <0f> 0b 58 31 c0 5a 5b 5d 41 5c 41 5d 41 5e 41 5f e9 2b e5 5d 01 41\nRSP: 0018:ffff88811cc27978 EFLAGS: 00010286\nRAX: 0000000000000000 RBX: ffff888140590ba0 RCX: ffffffffaaf20bae\nRDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8881f6fb6f40\nRBP: ffff8881462ec000 R08: 0000000000000001 R09: ffffed1023984ee3\nR10: ffff88811cc2771f R11: 00000000016cfcc0 R12: ffff888134383e08\nR13: 0000000000000002 R14: ffff8881462ec668 R15: ffffffffaceab4c0\nFS: 00007f23bfa98740(0000) GS:ffff8881f6f80000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000556de4a6f808 CR3: 0000000123c80000 CR4: 0000000000350ef0\nCall Trace:\n <TASK>\n d_walk+0x6a/0x530\n shrink_dcache_for_umount+0x6a/0x200\n generic_shutdown_super+0x52/0x2a0\n kill_anon_super+0x22/0x40\n cifs_kill_sb+0x159/0x1e0\n deactivate_locked_super+0x66/0xe0\n cleanup_mnt+0x140/0x210\n task_work_run+0xfb/0x170\n syscall_exit_to_user_mode+0x29f/0x2b0\n do_syscall_64+0xa1/0x1a0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\nRIP: 0033:0x7f23bfb93ae7\nCode: ff ff ff ff c3 66 0f 1f 44 00 00 48 8b 0d 11 93 0d 00 f7 d8 64 89 01 b8 ff ff ff ff eb bf 0f 1f 44 00 00 b8 50 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e9 92 0d 00 f7 d8 64 89 \n---truncated---" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/smb/client/cached_dir.c" |
| ], |
| "versions": [ |
| { |
| "version": "ebe98f1447bbccf8228335c62d86af02a0ed23f7", |
| "lessThan": "31fabf70d58388d5475e48ca8a6b7d2847b36678", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ebe98f1447bbccf8228335c62d86af02a0ed23f7", |
| "lessThan": "1d76332d783db12684b67592f1fb2057b88af4c3", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ebe98f1447bbccf8228335c62d86af02a0ed23f7", |
| "lessThan": "73a57b25b4df23f22814fc06b7e8f9cf570be026", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ebe98f1447bbccf8228335c62d86af02a0ed23f7", |
| "lessThan": "7afb86733685c64c604d32faf00fa4a1f22c2ab1", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/smb/client/cached_dir.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.1", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.1", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.64", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.11", |
| "lessThanOrEqual": "6.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.2", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.6.64" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.11.11" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.12.2" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.13" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/31fabf70d58388d5475e48ca8a6b7d2847b36678" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1d76332d783db12684b67592f1fb2057b88af4c3" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/73a57b25b4df23f22814fc06b7e8f9cf570be026" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7afb86733685c64c604d32faf00fa4a1f22c2ab1" |
| } |
| ], |
| "title": "smb: Don't leak cfid when reconnect races with open_cached_dir", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-53178", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
