CVE-2023-52900 (GCVE-0-2023-52900)

Vulnerability from cvelistv5 – Published: 2024-08-21 06:10 – Updated: 2026-01-05 10:17
VLAI?
Title
nilfs2: fix general protection fault in nilfs_btree_insert()
Summary
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix general protection fault in nilfs_btree_insert() If nilfs2 reads a corrupted disk image and tries to reads a b-tree node block by calling __nilfs_btree_get_block() against an invalid virtual block address, it returns -ENOENT because conversion of the virtual block address to a disk block address fails. However, this return value is the same as the internal code that b-tree lookup routines return to indicate that the block being searched does not exist, so functions that operate on that b-tree may misbehave. When nilfs_btree_insert() receives this spurious 'not found' code from nilfs_btree_do_lookup(), it misunderstands that the 'not found' check was successful and continues the insert operation using incomplete lookup path data, causing the following crash: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] ... RIP: 0010:nilfs_btree_get_nonroot_node fs/nilfs2/btree.c:418 [inline] RIP: 0010:nilfs_btree_prepare_insert fs/nilfs2/btree.c:1077 [inline] RIP: 0010:nilfs_btree_insert+0x6d3/0x1c10 fs/nilfs2/btree.c:1238 Code: bc 24 80 00 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 4b 02 92 fe 4d 8b 3f 49 83 c7 28 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 2e 02 92 fe 4d 8b 3f 49 83 c7 02 ... Call Trace: <TASK> nilfs_bmap_do_insert fs/nilfs2/bmap.c:121 [inline] nilfs_bmap_insert+0x20d/0x360 fs/nilfs2/bmap.c:147 nilfs_get_block+0x414/0x8d0 fs/nilfs2/inode.c:101 __block_write_begin_int+0x54c/0x1a80 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x93/0x1e0 fs/buffer.c:2102 nilfs_write_begin+0x9c/0x110 fs/nilfs2/inode.c:261 generic_perform_write+0x2e4/0x5e0 mm/filemap.c:3772 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3900 generic_file_write_iter+0xab/0x310 mm/filemap.c:3932 call_write_iter include/linux/fs.h:2186 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x7dc/0xc50 fs/read_write.c:584 ksys_write+0x177/0x2a0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd ... </TASK> This patch fixes the root cause of this problem by replacing the error code that __nilfs_btree_get_block() returns on block address conversion failure from -ENOENT to another internal code -EINVAL which means that the b-tree metadata is corrupted. By returning -EINVAL, it propagates without glitches, and for all relevant b-tree operations, functions in the upper bmap layer output an error message indicating corrupted b-tree metadata via nilfs_bmap_convert_error(), and code -EIO will be eventually returned as it should be.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 3c2a2ff67d46106715c2132021b98bd057c27545 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < d9fde9eab1766170ff2ade67d09178d2cfd78749 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < b0ba060d3287108eba17603bee3810e4cf2c272d (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 712bd74eccb9d3626a0a236641962eca8e11a243 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 45627a1a6450662e1e0f8174ef07b05710a20062 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 0bf463939c09e5b2c35c71ed74a5fd60a74d6a04 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 7633355e5c7f29c049a9048e461427d1d8ed3051 (git)
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    Linux Linux Affected: 2.6.30
Unaffected: 0 , < 2.6.30 (semver)
Unaffected: 4.14.304 , ≤ 4.14.* (semver)
Unaffected: 4.19.271 , ≤ 4.19.* (semver)
Unaffected: 5.4.230 , ≤ 5.4.* (semver)
Unaffected: 5.10.165 , ≤ 5.10.* (semver)
Unaffected: 5.15.90 , ≤ 5.15.* (semver)
Unaffected: 6.1.8 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52900\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T16:03:31.052227Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:19.005Z\"}}], \"cna\": {\"title\": \"nilfs2: fix general protection fault in nilfs_btree_insert()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"a60be987d45dd510aeb54389526f9957cfab106c\", \"lessThan\": \"3c2a2ff67d46106715c2132021b98bd057c27545\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a60be987d45dd510aeb54389526f9957cfab106c\", \"lessThan\": \"d9fde9eab1766170ff2ade67d09178d2cfd78749\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a60be987d45dd510aeb54389526f9957cfab106c\", \"lessThan\": \"b0ba060d3287108eba17603bee3810e4cf2c272d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a60be987d45dd510aeb54389526f9957cfab106c\", \"lessThan\": \"712bd74eccb9d3626a0a236641962eca8e11a243\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a60be987d45dd510aeb54389526f9957cfab106c\", \"lessThan\": \"45627a1a6450662e1e0f8174ef07b05710a20062\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a60be987d45dd510aeb54389526f9957cfab106c\", \"lessThan\": \"0bf463939c09e5b2c35c71ed74a5fd60a74d6a04\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a60be987d45dd510aeb54389526f9957cfab106c\", \"lessThan\": \"7633355e5c7f29c049a9048e461427d1d8ed3051\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/nilfs2/btree.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.30\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.30\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.14.304\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.271\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.230\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.165\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.90\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/nilfs2/btree.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/3c2a2ff67d46106715c2132021b98bd057c27545\"}, {\"url\": \"https://git.kernel.org/stable/c/d9fde9eab1766170ff2ade67d09178d2cfd78749\"}, {\"url\": \"https://git.kernel.org/stable/c/b0ba060d3287108eba17603bee3810e4cf2c272d\"}, {\"url\": \"https://git.kernel.org/stable/c/712bd74eccb9d3626a0a236641962eca8e11a243\"}, {\"url\": \"https://git.kernel.org/stable/c/45627a1a6450662e1e0f8174ef07b05710a20062\"}, {\"url\": \"https://git.kernel.org/stable/c/0bf463939c09e5b2c35c71ed74a5fd60a74d6a04\"}, {\"url\": \"https://git.kernel.org/stable/c/7633355e5c7f29c049a9048e461427d1d8ed3051\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnilfs2: fix general protection fault in nilfs_btree_insert()\\n\\nIf nilfs2 reads a corrupted disk image and tries to reads a b-tree node\\nblock by calling __nilfs_btree_get_block() against an invalid virtual\\nblock address, it returns -ENOENT because conversion of the virtual block\\naddress to a disk block address fails.  However, this return value is the\\nsame as the internal code that b-tree lookup routines return to indicate\\nthat the block being searched does not exist, so functions that operate on\\nthat b-tree may misbehave.\\n\\nWhen nilfs_btree_insert() receives this spurious \u0027not found\u0027 code from\\nnilfs_btree_do_lookup(), it misunderstands that the \u0027not found\u0027 check was\\nsuccessful and continues the insert operation using incomplete lookup path\\ndata, causing the following crash:\\n\\n general protection fault, probably for non-canonical address\\n 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN\\n KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]\\n ...\\n RIP: 0010:nilfs_btree_get_nonroot_node fs/nilfs2/btree.c:418 [inline]\\n RIP: 0010:nilfs_btree_prepare_insert fs/nilfs2/btree.c:1077 [inline]\\n RIP: 0010:nilfs_btree_insert+0x6d3/0x1c10 fs/nilfs2/btree.c:1238\\n Code: bc 24 80 00 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89\\n ff e8 4b 02 92 fe 4d 8b 3f 49 83 c7 28 4c 89 f8 48 c1 e8 03 \u003c42\u003e 80 3c\\n 28 00 74 08 4c 89 ff e8 2e 02 92 fe 4d 8b 3f 49 83 c7 02\\n ...\\n Call Trace:\\n \u003cTASK\u003e\\n  nilfs_bmap_do_insert fs/nilfs2/bmap.c:121 [inline]\\n  nilfs_bmap_insert+0x20d/0x360 fs/nilfs2/bmap.c:147\\n  nilfs_get_block+0x414/0x8d0 fs/nilfs2/inode.c:101\\n  __block_write_begin_int+0x54c/0x1a80 fs/buffer.c:1991\\n  __block_write_begin fs/buffer.c:2041 [inline]\\n  block_write_begin+0x93/0x1e0 fs/buffer.c:2102\\n  nilfs_write_begin+0x9c/0x110 fs/nilfs2/inode.c:261\\n  generic_perform_write+0x2e4/0x5e0 mm/filemap.c:3772\\n  __generic_file_write_iter+0x176/0x400 mm/filemap.c:3900\\n  generic_file_write_iter+0xab/0x310 mm/filemap.c:3932\\n  call_write_iter include/linux/fs.h:2186 [inline]\\n  new_sync_write fs/read_write.c:491 [inline]\\n  vfs_write+0x7dc/0xc50 fs/read_write.c:584\\n  ksys_write+0x177/0x2a0 fs/read_write.c:637\\n  do_syscall_x64 arch/x86/entry/common.c:50 [inline]\\n  do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n ...\\n \u003c/TASK\u003e\\n\\nThis patch fixes the root cause of this problem by replacing the error\\ncode that __nilfs_btree_get_block() returns on block address conversion\\nfailure from -ENOENT to another internal code -EINVAL which means that the\\nb-tree metadata is corrupted.\\n\\nBy returning -EINVAL, it propagates without glitches, and for all relevant\\nb-tree operations, functions in the upper bmap layer output an error\\nmessage indicating corrupted b-tree metadata via\\nnilfs_bmap_convert_error(), and code -EIO will be eventually returned as\\nit should be.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.304\", \"versionStartIncluding\": \"2.6.30\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.271\", \"versionStartIncluding\": \"2.6.30\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.230\", \"versionStartIncluding\": \"2.6.30\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.165\", \"versionStartIncluding\": \"2.6.30\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.90\", \"versionStartIncluding\": \"2.6.30\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.8\", \"versionStartIncluding\": \"2.6.30\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"2.6.30\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:17:54.013Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52900\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:17:54.013Z\", \"dateReserved\": \"2024-08-21T06:07:11.014Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-21T06:10:40.533Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.