CVE-2021-47145 (GCVE-0-2021-47145)
Vulnerability from cvelistv5
Published
2024-03-25 09:07
Modified
2024-12-19 07:36
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: do not BUG_ON in link_to_fixup_dir While doing error injection testing I got the following panic kernel BUG at fs/btrfs/tree-log.c:1862! invalid opcode: 0000 [#1] SMP NOPTI CPU: 1 PID: 7836 Comm: mount Not tainted 5.13.0-rc1+ #305 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014 RIP: 0010:link_to_fixup_dir+0xd5/0xe0 RSP: 0018:ffffb5800180fa30 EFLAGS: 00010216 RAX: fffffffffffffffb RBX: 00000000fffffffb RCX: ffff8f595287faf0 RDX: ffffb5800180fa37 RSI: ffff8f5954978800 RDI: 0000000000000000 RBP: ffff8f5953af9450 R08: 0000000000000019 R09: 0000000000000001 R10: 000151f408682970 R11: 0000000120021001 R12: ffff8f5954978800 R13: ffff8f595287faf0 R14: ffff8f5953c77dd0 R15: 0000000000000065 FS: 00007fc5284c8c40(0000) GS:ffff8f59bbd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc5287f47c0 CR3: 000000011275e002 CR4: 0000000000370ee0 Call Trace: replay_one_buffer+0x409/0x470 ? btree_read_extent_buffer_pages+0xd0/0x110 walk_up_log_tree+0x157/0x1e0 walk_log_tree+0xa6/0x1d0 btrfs_recover_log_trees+0x1da/0x360 ? replay_one_extent+0x7b0/0x7b0 open_ctree+0x1486/0x1720 btrfs_mount_root.cold+0x12/0xea ? __kmalloc_track_caller+0x12f/0x240 legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 vfs_kern_mount.part.0+0x71/0xb0 btrfs_mount+0x10d/0x380 ? vfs_parse_fs_string+0x4d/0x90 legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 path_mount+0x433/0xa10 __x64_sys_mount+0xe3/0x120 do_syscall_64+0x3d/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae We can get -EIO or any number of legitimate errors from btrfs_search_slot(), panicing here is not the appropriate response. The error path for this code handles errors properly, simply return the error.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9faPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91df99a6eb50d5a1bc70fff4a09a0b7ae6aab96dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e934c4ee17b33bafb0444f2f9766cda7166d3c40Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9faPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/91df99a6eb50d5a1bc70fff4a09a0b7ae6aab96dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e934c4ee17b33bafb0444f2f9766cda7166d3c40Patch
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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      datePublished: "2024-03-25T09:07:42.384Z",
      dateReserved: "2024-03-04T18:12:48.845Z",
      dateUpdated: "2024-12-19T07:36:05.925Z",
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      fkie_nvd: {
         configurations: "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.4.271\", \"matchCriteriaId\": \"3B637FF8-3372-4BEA-89EE-EC94A37C4E6B\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.5\", \"versionEndExcluding\": \"4.9.271\", \"matchCriteriaId\": \"1E7DAE3A-78E9-45DB-96D8-4541CD7DC26B\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.10\", \"versionEndExcluding\": \"4.14.235\", \"matchCriteriaId\": \"03A23445-0C1A-42AB-AC5C-768360DDF32C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.15\", \"versionEndExcluding\": \"4.19.193\", \"matchCriteriaId\": \"C8DEF3EC-88D9-4B89-8CF9-64BD6C863C9D\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.20\", \"versionEndExcluding\": \"5.4.124\", \"matchCriteriaId\": \"06FE0F99-F7A9-462A-8355-30E2EDA9826B\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.5\", \"versionEndExcluding\": \"5.10.42\", \"matchCriteriaId\": \"C3E7E799-1C8A-45FB-9E07-4731996144C9\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.12.9\", \"matchCriteriaId\": \"2C8A1D02-81A7-44E5-ACFD-CC6A6694F930\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*\", \"matchCriteriaId\": \"96AC23B2-D46A-49D9-8203-8E1BEDCA8532\"}]}]}]",
         descriptions: "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: do not BUG_ON in link_to_fixup_dir\\n\\nWhile doing error injection testing I got the following panic\\n\\n  kernel BUG at fs/btrfs/tree-log.c:1862!\\n  invalid opcode: 0000 [#1] SMP NOPTI\\n  CPU: 1 PID: 7836 Comm: mount Not tainted 5.13.0-rc1+ #305\\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014\\n  RIP: 0010:link_to_fixup_dir+0xd5/0xe0\\n  RSP: 0018:ffffb5800180fa30 EFLAGS: 00010216\\n  RAX: fffffffffffffffb RBX: 00000000fffffffb RCX: ffff8f595287faf0\\n  RDX: ffffb5800180fa37 RSI: ffff8f5954978800 RDI: 0000000000000000\\n  RBP: ffff8f5953af9450 R08: 0000000000000019 R09: 0000000000000001\\n  R10: 000151f408682970 R11: 0000000120021001 R12: ffff8f5954978800\\n  R13: ffff8f595287faf0 R14: ffff8f5953c77dd0 R15: 0000000000000065\\n  FS:  00007fc5284c8c40(0000) GS:ffff8f59bbd00000(0000) knlGS:0000000000000000\\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n  CR2: 00007fc5287f47c0 CR3: 000000011275e002 CR4: 0000000000370ee0\\n  Call Trace:\\n   replay_one_buffer+0x409/0x470\\n   ? btree_read_extent_buffer_pages+0xd0/0x110\\n   walk_up_log_tree+0x157/0x1e0\\n   walk_log_tree+0xa6/0x1d0\\n   btrfs_recover_log_trees+0x1da/0x360\\n   ? replay_one_extent+0x7b0/0x7b0\\n   open_ctree+0x1486/0x1720\\n   btrfs_mount_root.cold+0x12/0xea\\n   ? __kmalloc_track_caller+0x12f/0x240\\n   legacy_get_tree+0x24/0x40\\n   vfs_get_tree+0x22/0xb0\\n   vfs_kern_mount.part.0+0x71/0xb0\\n   btrfs_mount+0x10d/0x380\\n   ? vfs_parse_fs_string+0x4d/0x90\\n   legacy_get_tree+0x24/0x40\\n   vfs_get_tree+0x22/0xb0\\n   path_mount+0x433/0xa10\\n   __x64_sys_mount+0xe3/0x120\\n   do_syscall_64+0x3d/0x80\\n   entry_SYSCALL_64_after_hwframe+0x44/0xae\\n\\nWe can get -EIO or any number of legitimate errors from\\nbtrfs_search_slot(), panicing here is not the appropriate response.  The\\nerror path for this code handles errors properly, simply return the\\nerror.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: btrfs: no haga ERROR_ON en link_to_fixup_dir Mientras realizaba pruebas de inyecci\\u00f3n de errores, obtuve el siguiente ERROR de p\\u00e1nico en el kernel en fs/btrfs/tree-log.c:1862. c\\u00f3digo de operaci\\u00f3n no v\\u00e1lido: 0000 [#1] SMP NOPTI CPU: 1 PID: 7836 Comm: mount Not tainted 5.13.0-rc1+ #305 Nombre de hardware: PC est\\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 01/04/2014 RIP: 0010:link_to_fixup_dir+0xd5/0xe0 RSP: 0018:ffffb5800180fa30 EFLAGS: 00010216 RAX: fffffffffffffffb RBX: 00000000ffffffffb RCX: ffff8f595287faf0 RDX : ffffb5800180fa37 RSI: ffff8f5954978800 RDI: 0000000000000000 RBP: ffff8f5953af9450 R08: 00000000000000019 R09: 0000000000000001 R10 : 000151f408682970 R11: 0000000120021001 R12: ffff8f5954978800 R13: ffff8f595287faf0 R14: ffff8f5953c77dd0 R15: 0000000000000065 FS: 00007 fc5284c8c40(0000) GS:ffff8f59bbd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc5287f47c0 CR3: 0 00000011275e002 CR4: 0000000000370ee0 Seguimiento de llamadas: replay_one_buffer+0x409/0x470? btree_read_extent_buffer_pages+0xd0/0x110 walk_up_log_tree+0x157/0x1e0 walk_log_tree+0xa6/0x1d0 btrfs_recover_log_trees+0x1da/0x360 ? replay_one_extent+0x7b0/0x7b0 open_ctree+0x1486/0x1720 btrfs_mount_root.cold+0x12/0xea ? __kmalloc_track_caller+0x12f/0x240 Legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 vfs_kern_mount.part.0+0x71/0xb0 btrfs_mount+0x10d/0x380 ? vfs_parse_fs_string+0x4d/0x90 Legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 path_mount+0x433/0xa10 __x64_sys_mount+0xe3/0x120 do_syscall_64+0x3d/0x80 Entry_SYSCALL_64_after_hwframe+0 x44/0xae Podemos obtener -EIO o cualquier n\\u00famero de errores leg\\u00edtimos de btrfs_search_slot() , entrar en p\\u00e1nico aqu\\u00ed no es la respuesta adecuada. La ruta de error para este c\\u00f3digo maneja los errores correctamente, simplemente devuelve el error.\"}]",
         id: "CVE-2021-47145",
         lastModified: "2024-12-20T13:54:08.207",
         metrics: "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
         published: "2024-03-25T09:15:08.993",
         references: "[{\"url\": \"https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9fa\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcf\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/91df99a6eb50d5a1bc70fff4a09a0b7ae6aab96d\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255c\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/e934c4ee17b33bafb0444f2f9766cda7166d3c40\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9fa\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcf\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090a\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/91df99a6eb50d5a1bc70fff4a09a0b7ae6aab96d\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255c\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/e934c4ee17b33bafb0444f2f9766cda7166d3c40\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}]",
         sourceIdentifier: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         vulnStatus: "Analyzed",
         weaknesses: "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]",
      },
      nvd: "{\"cve\":{\"id\":\"CVE-2021-47145\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-25T09:15:08.993\",\"lastModified\":\"2024-12-20T13:54:08.207\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: do not BUG_ON in link_to_fixup_dir\\n\\nWhile doing error injection testing I got the following panic\\n\\n  kernel BUG at fs/btrfs/tree-log.c:1862!\\n  invalid opcode: 0000 [#1] SMP NOPTI\\n  CPU: 1 PID: 7836 Comm: mount Not tainted 5.13.0-rc1+ #305\\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014\\n  RIP: 0010:link_to_fixup_dir+0xd5/0xe0\\n  RSP: 0018:ffffb5800180fa30 EFLAGS: 00010216\\n  RAX: fffffffffffffffb RBX: 00000000fffffffb RCX: ffff8f595287faf0\\n  RDX: ffffb5800180fa37 RSI: ffff8f5954978800 RDI: 0000000000000000\\n  RBP: ffff8f5953af9450 R08: 0000000000000019 R09: 0000000000000001\\n  R10: 000151f408682970 R11: 0000000120021001 R12: ffff8f5954978800\\n  R13: ffff8f595287faf0 R14: ffff8f5953c77dd0 R15: 0000000000000065\\n  FS:  00007fc5284c8c40(0000) GS:ffff8f59bbd00000(0000) knlGS:0000000000000000\\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n  CR2: 00007fc5287f47c0 CR3: 000000011275e002 CR4: 0000000000370ee0\\n  Call Trace:\\n   replay_one_buffer+0x409/0x470\\n   ? btree_read_extent_buffer_pages+0xd0/0x110\\n   walk_up_log_tree+0x157/0x1e0\\n   walk_log_tree+0xa6/0x1d0\\n   btrfs_recover_log_trees+0x1da/0x360\\n   ? replay_one_extent+0x7b0/0x7b0\\n   open_ctree+0x1486/0x1720\\n   btrfs_mount_root.cold+0x12/0xea\\n   ? __kmalloc_track_caller+0x12f/0x240\\n   legacy_get_tree+0x24/0x40\\n   vfs_get_tree+0x22/0xb0\\n   vfs_kern_mount.part.0+0x71/0xb0\\n   btrfs_mount+0x10d/0x380\\n   ? vfs_parse_fs_string+0x4d/0x90\\n   legacy_get_tree+0x24/0x40\\n   vfs_get_tree+0x22/0xb0\\n   path_mount+0x433/0xa10\\n   __x64_sys_mount+0xe3/0x120\\n   do_syscall_64+0x3d/0x80\\n   entry_SYSCALL_64_after_hwframe+0x44/0xae\\n\\nWe can get -EIO or any number of legitimate errors from\\nbtrfs_search_slot(), panicing here is not the appropriate response.  The\\nerror path for this code handles errors properly, simply return the\\nerror.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvió la siguiente vulnerabilidad: btrfs: no haga ERROR_ON en link_to_fixup_dir Mientras realizaba pruebas de inyección de errores, obtuve el siguiente ERROR de pánico en el kernel en fs/btrfs/tree-log.c:1862. código de operación no válido: 0000 [#1] SMP NOPTI CPU: 1 PID: 7836 Comm: mount Not tainted 5.13.0-rc1+ #305 Nombre de hardware: PC estándar QEMU (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 01/04/2014 RIP: 0010:link_to_fixup_dir+0xd5/0xe0 RSP: 0018:ffffb5800180fa30 EFLAGS: 00010216 RAX: fffffffffffffffb RBX: 00000000ffffffffb RCX: ffff8f595287faf0 RDX : ffffb5800180fa37 RSI: ffff8f5954978800 RDI: 0000000000000000 RBP: ffff8f5953af9450 R08: 00000000000000019 R09: 0000000000000001 R10 : 000151f408682970 R11: 0000000120021001 R12: ffff8f5954978800 R13: ffff8f595287faf0 R14: ffff8f5953c77dd0 R15: 0000000000000065 FS: 00007 fc5284c8c40(0000) GS:ffff8f59bbd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc5287f47c0 CR3: 0 00000011275e002 CR4: 0000000000370ee0 Seguimiento de llamadas: replay_one_buffer+0x409/0x470? btree_read_extent_buffer_pages+0xd0/0x110 walk_up_log_tree+0x157/0x1e0 walk_log_tree+0xa6/0x1d0 btrfs_recover_log_trees+0x1da/0x360 ? replay_one_extent+0x7b0/0x7b0 open_ctree+0x1486/0x1720 btrfs_mount_root.cold+0x12/0xea ? __kmalloc_track_caller+0x12f/0x240 Legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 vfs_kern_mount.part.0+0x71/0xb0 btrfs_mount+0x10d/0x380 ? vfs_parse_fs_string+0x4d/0x90 Legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 path_mount+0x433/0xa10 __x64_sys_mount+0xe3/0x120 do_syscall_64+0x3d/0x80 Entry_SYSCALL_64_after_hwframe+0 x44/0xae Podemos obtener -EIO o cualquier número de errores legítimos de btrfs_search_slot() , entrar en pánico aquí no es la respuesta adecuada. La ruta de error para este código maneja los errores correctamente, simplemente devuelve el error.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.4.271\",\"matchCriteriaId\":\"3B637FF8-3372-4BEA-89EE-EC94A37C4E6B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5\",\"versionEndExcluding\":\"4.9.271\",\"matchCriteriaId\":\"1E7DAE3A-78E9-45DB-96D8-4541CD7DC26B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.235\",\"matchCriteriaId\":\"03A23445-0C1A-42AB-AC5C-768360DDF32C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.193\",\"matchCriteriaId\":\"C8DEF3EC-88D9-4B89-8CF9-64BD6C863C9D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.124\",\"matchCriteriaId\":\"06FE0F99-F7A9-462A-8355-30E2EDA9826B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.42\",\"matchCriteriaId\":\"C3E7E799-1C8A-45FB-9E07-4731996144C9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.12.9\",\"matchCriteriaId\":\"2C8A1D02-81A7-44E5-ACFD-CC6A6694F930\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"96AC23B2-D46A-49D9-8203-8E1BEDCA8532\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9fa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/91df99a6eb50d5a1bc70fff4a09a0b7ae6aab96d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e934c4ee17b33bafb0444f2f9766cda7166d3c40\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9fa\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/91df99a6eb50d5a1bc70fff4a09a0b7ae6aab96d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e934c4ee17b33baf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      vulnrichment: {
         containers: "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcf\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e934c4ee17b33bafb0444f2f9766cda7166d3c40\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9fa\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090a\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255c\", \"tags\": [\"x_transferred\"]}, {\"url\": 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\"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/btrfs/tree-log.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcf\"}, {\"url\": \"https://git.kernel.org/stable/c/e934c4ee17b33bafb0444f2f9766cda7166d3c40\"}, {\"url\": \"https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611\"}, {\"url\": \"https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9fa\"}, {\"url\": \"https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003\"}, {\"url\": \"https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090a\"}, {\"url\": \"https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255c\"}, {\"url\": \"https://git.kernel.org/stable/c/91df99a6eb50d5a1bc70fff4a09a0b7ae6aab96d\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: do not BUG_ON in link_to_fixup_dir\\n\\nWhile doing error injection testing I got the following panic\\n\\n  kernel BUG at fs/btrfs/tree-log.c:1862!\\n  invalid opcode: 0000 [#1] SMP NOPTI\\n  CPU: 1 PID: 7836 Comm: mount Not tainted 5.13.0-rc1+ #305\\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014\\n  RIP: 0010:link_to_fixup_dir+0xd5/0xe0\\n  RSP: 0018:ffffb5800180fa30 EFLAGS: 00010216\\n  RAX: fffffffffffffffb RBX: 00000000fffffffb RCX: ffff8f595287faf0\\n  RDX: ffffb5800180fa37 RSI: ffff8f5954978800 RDI: 0000000000000000\\n  RBP: ffff8f5953af9450 R08: 0000000000000019 R09: 0000000000000001\\n  R10: 000151f408682970 R11: 0000000120021001 R12: ffff8f5954978800\\n  R13: ffff8f595287faf0 R14: ffff8f5953c77dd0 R15: 0000000000000065\\n  FS:  00007fc5284c8c40(0000) GS:ffff8f59bbd00000(0000) knlGS:0000000000000000\\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n  CR2: 00007fc5287f47c0 CR3: 000000011275e002 CR4: 0000000000370ee0\\n  Call Trace:\\n   replay_one_buffer+0x409/0x470\\n   ? btree_read_extent_buffer_pages+0xd0/0x110\\n   walk_up_log_tree+0x157/0x1e0\\n   walk_log_tree+0xa6/0x1d0\\n   btrfs_recover_log_trees+0x1da/0x360\\n   ? replay_one_extent+0x7b0/0x7b0\\n   open_ctree+0x1486/0x1720\\n   btrfs_mount_root.cold+0x12/0xea\\n   ? __kmalloc_track_caller+0x12f/0x240\\n   legacy_get_tree+0x24/0x40\\n   vfs_get_tree+0x22/0xb0\\n   vfs_kern_mount.part.0+0x71/0xb0\\n   btrfs_mount+0x10d/0x380\\n   ? vfs_parse_fs_string+0x4d/0x90\\n   legacy_get_tree+0x24/0x40\\n   vfs_get_tree+0x22/0xb0\\n   path_mount+0x433/0xa10\\n   __x64_sys_mount+0xe3/0x120\\n   do_syscall_64+0x3d/0x80\\n   entry_SYSCALL_64_after_hwframe+0x44/0xae\\n\\nWe can get -EIO or any number of legitimate errors from\\nbtrfs_search_slot(), panicing here is not the appropriate response.  The\\nerror path for this code handles errors properly, simply return the\\nerror.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T12:00:21.515Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2021-47145\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T12:00:21.515Z\", \"dateReserved\": \"2024-03-04T18:12:48.845Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-25T09:07:42.384Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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