{ "dataType": "CVE_RECORD", "cveMetadata": { "cveId": "CVE-2024-26685", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.153Z", "datePublished": "2024-04-03T14:54:47.688Z", "dateUpdated": "2024-08-02T00:14:12.823Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:20:48.959Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix potential bug in end_buffer_async_write\n\nAccording to a syzbot report, end_buffer_async_write(), which handles the\ncompletion of block device writes, may detect abnormal condition of the\nbuffer async_write flag and cause a BUG_ON failure when using nilfs2.\n\nNilfs2 itself does not use end_buffer_async_write(). But, the async_write\nflag is now used as a marker by commit 7f42ec394156 (\"nilfs2: fix issue\nwith race condition of competition between segments for dirty blocks\") as\na means of resolving double list insertion of dirty blocks in\nnilfs_lookup_dirty_data_buffers() and nilfs_lookup_node_buffers() and the\nresulting crash.\n\nThis modification is safe as long as it is used for file data and b-tree\nnode blocks where the page caches are independent. However, it was\nirrelevant and redundant to also introduce async_write for segment summary\nand super root blocks that share buffers with the backing device. This\nled to the possibility that the BUG_ON check in end_buffer_async_write\nwould fail as described above, if independent writebacks of the backing\ndevice occurred in parallel.\n\nThe use of async_write for segment summary buffers has already been\nremoved in a previous change.\n\nFix this issue by removing the manipulation of the async_write flag for\nthe remaining super root block buffer." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/nilfs2/segment.c" ], "versions": [ { "version": "7f42ec394156", "lessThan": "c4a09fdac625", "status": "affected", "versionType": "git" }, { "version": "7f42ec394156", "lessThan": "d31c8721e816", "status": "affected", "versionType": "git" }, { "version": "7f42ec394156", "lessThan": "f3e4963566f5", "status": "affected", "versionType": "git" }, { "version": "7f42ec394156", "lessThan": "8fa90634ec3e", "status": "affected", "versionType": "git" }, { "version": "7f42ec394156", "lessThan": "6589f0f72f8e", "status": "affected", "versionType": "git" }, { "version": "7f42ec394156", "lessThan": "2c3bdba00283", "status": "affected", "versionType": "git" }, { "version": "7f42ec394156", "lessThan": "626daab3811b", "status": "affected", "versionType": "git" }, { "version": "7f42ec394156", "lessThan": "5bc09b397cbf", "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/nilfs2/segment.c" ], "versions": [ { "version": "3.12", "status": "affected" }, { "version": "0", "lessThan": "3.12", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.307", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.269", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.210", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.149", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.79", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.18", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.7.6", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.8", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/c4a09fdac625e64abe478dcf88bfa20406616928" }, { "url": "https://git.kernel.org/stable/c/d31c8721e816eff5ca6573cc487754f357c093cd" }, { "url": "https://git.kernel.org/stable/c/f3e4963566f58726d3265a727116a42b591f6596" }, { "url": "https://git.kernel.org/stable/c/8fa90634ec3e9cc50f42dd605eec60f2d146ced8" }, { "url": "https://git.kernel.org/stable/c/6589f0f72f8edd1fa11adce4eedbd3615f2e78ab" }, { "url": "https://git.kernel.org/stable/c/2c3bdba00283a6c7a5b19481a59a730f46063803" }, { "url": "https://git.kernel.org/stable/c/626daab3811b772086aef1bf8eed3ffe6f523eff" }, { "url": "https://git.kernel.org/stable/c/5bc09b397cbf1221f8a8aacb1152650c9195b02b" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html" } ], "title": "nilfs2: fix potential bug in end_buffer_async_write", "x_generator": { "engine": "bippy-a5840b7849dd" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-26685", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-04-03T18:35:50.019246Z" } } } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:49:22.088Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:12.823Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/c4a09fdac625e64abe478dcf88bfa20406616928", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/d31c8721e816eff5ca6573cc487754f357c093cd", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/f3e4963566f58726d3265a727116a42b591f6596", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/8fa90634ec3e9cc50f42dd605eec60f2d146ced8", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/6589f0f72f8edd1fa11adce4eedbd3615f2e78ab", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/2c3bdba00283a6c7a5b19481a59a730f46063803", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/626daab3811b772086aef1bf8eed3ffe6f523eff", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/5bc09b397cbf1221f8a8aacb1152650c9195b02b", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "tags": [ "x_transferred" ] } ] } ] }, "dataVersion": "5.1" }