{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2024-49959", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-49959", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-10-21T18:02:12.355Z", "updatedAt": "2026-05-11T20:42:51.196Z", "importedAt": "2026-10-24T01:57:16.009Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "jbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error\n\nIn __jbd2_log_wait_for_space(), we might call jbd2_cleanup_journal_tail()\nto recover some journal space. But if an error occurs while executing\njbd2_cleanup_journal_tail() (e.g., an EIO), we don't stop waiting for free\nspace right away, we try other branches, and if j_committing_transaction\nis NULL (i.e., the tid is 0), we will get the following complain:\n\n============================================\nJBD2: I/O error when updating journal superblock for sdd-8.\n__jbd2_log_wait_for_space: needed 256 blocks and only had 217 space available\n__jbd2_log_wait_for_space: no way to get more journal space in sdd-8\n------------[ cut here ]------------\nWARNING: CPU: 2 PID: 139804 at fs/jbd2/checkpoint.c:109 __jbd2_log_wait_for_space+0x251/0x2e0\nModules linked in:\nCPU: 2 PID: 139804 Comm: kworker/u8:3 Not tainted 6.6.0+ #1\nRIP: 0010:__jbd2_log_wait_for_space+0x251/0x2e0\nCall Trace:\n \n add_transaction_credits+0x5d1/0x5e0\n start_this_handle+0x1ef/0x6a0\n jbd2__journal_start+0x18b/0x340\n ext4_dirty_inode+0x5d/0xb0\n __mark_inode_dirty+0xe4/0x5d0\n generic_update_time+0x60/0x70\n[...]\n============================================\n\nSo only if jbd2_cleanup_journal_tail() returns 1, i.e., there is nothing to\nclean up at the moment, continue to try to reclaim free space in other ways.\n\nNote that this fix relies on commit 6f6a6fda2945 (\"jbd2: fix ocfs2 corrupt\nwhen updating journal superblock fails\") to make jbd2_cleanup_journal_tail\nreturn the correct error code.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550", "status": "affected", "versionType": "git", "lessThan": "801a35dfef6996f3d5eaa96a59caf00440d9165e" }, { "version": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550", "status": "affected", "versionType": "git", "lessThan": "d5dc65370a746750dbb2f03eabcf86b18db65f32" }, { "version": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550", "status": "affected", "versionType": "git", "lessThan": "481e8f18a290e39e04ddb7feb2bb2a2cc3b213ed" }, { "version": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550", "status": "affected", "versionType": "git", "lessThan": "ec7f8337c98ad281020ad1f11ba492462d80737a" }, { "version": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550", "status": "affected", "versionType": "git", "lessThan": "70bae48377a2c4296fd3caf4caf8f11079111019" }, { "version": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550", "status": "affected", "versionType": "git", "lessThan": "1c62dc0d82c62f0dc8fcdc4843208e522acccaf5" }, { "version": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550", "status": "affected", "versionType": "git", "lessThan": "3ced0fe6c0eff032733ea8b38778b34707270138" }, { "version": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550", "status": "affected", "versionType": "git", "lessThan": "c6bf043b210eac67d35a114e345c4e5585672913" }, { "version": "8c3f25d8950c3e9fe6c9849f88679b3f2a071550", "status": "affected", "versionType": "git", "lessThan": "f5cacdc6f2bb2a9bf214469dd7112b43dd2dd68a" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.28", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.28" }, { "version": "4.19.323", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.285", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.227", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.168", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.113", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.55", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.10.14", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.10.*" }, { "version": "6.11.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.11.*" }, { "version": "6.12", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }