| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix races between hole punching and AIO+DIO\n\nAfter commit \"ocfs2: return real error code in ocfs2_dio_wr_get_block\",\nfstests/generic/300 become from always failed to sometimes failed:\n\n========================================================================\n[ 473.293420 ] run fstests generic/300\n\n[ 475.296983 ] JBD2: Ignoring recovery information on journal\n[ 475.302473 ] ocfs2: Mounting device (253,1) on (node local, slot 0) with ordered data mode.\n[ 494.290998 ] OCFS2: ERROR (device dm-1): ocfs2_change_extent_flag: Owner 5668 has an extent at cpos 78723 which can no longer be found\n[ 494.291609 ] On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted.\n[ 494.292018 ] OCFS2: File system is now read-only.\n[ 494.292224 ] (kworker/19:11,2628,19):ocfs2_mark_extent_written:5272 ERROR: status = -30\n[ 494.292602 ] (kworker/19:11,2628,19):ocfs2_dio_end_io_write:2374 ERROR: status = -3\nfio: io_u error on file /mnt/scratch/racer: Read-only file system: write offset=460849152, buflen=131072\n=========================================================================\n\nIn __blockdev_direct_IO, ocfs2_dio_wr_get_block is called to add unwritten\nextents to a list. extents are also inserted into extent tree in\nocfs2_write_begin_nolock. Then another thread call fallocate to puch a\nhole at one of the unwritten extent. The extent at cpos was removed by\nocfs2_remove_extent(). At end io worker thread, ocfs2_search_extent_list\nfound there is no such extent at the cpos.\n\n T1 T2 T3\n inode lock\n ...\n insert extents\n ...\n inode unlock\nocfs2_fallocate\n __ocfs2_change_file_space\n inode lock\n lock ip_alloc_sem\n ocfs2_remove_inode_range inode\n ocfs2_remove_btree_range\n ocfs2_remove_extent\n ^---remove the extent at cpos 78723\n ...\n unlock ip_alloc_sem\n inode unlock\n ocfs2_dio_end_io\n ocfs2_dio_end_io_write\n lock ip_alloc_sem\n ocfs2_mark_extent_written\n ocfs2_change_extent_flag\n ocfs2_search_extent_list\n ^---failed to find extent\n ...\n unlock ip_alloc_sem\n\nIn most filesystems, fallocate is not compatible with racing with AIO+DIO,\nso fix it by adding to wait for all dio before fallocate/punch_hole like\next4." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/ocfs2/file.c" |
| ], |
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| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/ocfs2/file.c" |
| ], |
| "versions": [ |
| { |
| "version": "2.6.23", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "2.6.23", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.317", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.279", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.221", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.162", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.95", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.35", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.9.6", |
| "lessThanOrEqual": "6.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.10", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
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| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
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| "versionEndExcluding": "4.19.317" |
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| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/3c26b5d21b1239e9c7fd31ba7d9b2d7bdbaa68d9" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e8e2db1adac47970a6a9225f3858e9aa0e86287f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/050ce8af6838c71e872e982b50d3f1bec21da40e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/38825ff9da91d2854dcf6d9ac320a7e641e10f25" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ea042dc2bea19d72e37c298bf65a9c341ef3fff3" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3c361f313d696df72f9bccf058510e9ec737b9b1" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/117b9c009b72a6c2ebfd23484354dfee2d9570d2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/952b023f06a24b2ad6ba67304c4c84d45bea2f18" |
| } |
| ], |
| "title": "ocfs2: fix races between hole punching and AIO+DIO", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-40943", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
