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| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix timer use-after-free on failed mount\n\nSyzbot has found an ODEBUG bug in ext4_fill_super\n\nThe del_timer_sync function cancels the s_err_report timer,\nwhich reminds about filesystem errors daily. We should\nguarantee the timer is no longer active before kfree(sbi).\n\nWhen filesystem mounting fails, the flow goes to failed_mount3,\nwhere an error occurs when ext4_stop_mmpd is called, causing\na read I/O failure. This triggers the ext4_handle_error function\nthat ultimately re-arms the timer,\nleaving the s_err_report timer active before kfree(sbi) is called.\n\nFix the issue by canceling the s_err_report timer after calling ext4_stop_mmpd." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/ext4/super.c" |
| ], |
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| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
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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/ext4/super.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.14", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.14", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.237", |
| "lessThanOrEqual": "5.10.*", |
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| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.181", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.118", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.55", |
| "lessThanOrEqual": "6.6.*", |
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| }, |
| { |
| "version": "6.10.14", |
| "lessThanOrEqual": "6.10.*", |
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| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.3", |
| "lessThanOrEqual": "6.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
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| "vulnerable": true, |
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| { |
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| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/7aac0c17a8cdf4a3236991c1e60435c6a984076c" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/22e9b83f0f33bc5a7a3181769d1dccbf021f5b04" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/cf3196e5e2f36cd80dab91ffae402e13935724bc" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/9203817ba46ebba7c865c8de2aba399537b6e891" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/fa78fb51d396f4f2f80f8e96a3b1516f394258be" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b85569585d0154d4db1e4f9e3e6a4731d407feb0" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0ce160c5bdb67081a62293028dc85758a8efb22a" |
| } |
| ], |
| "title": "ext4: fix timer use-after-free on failed mount", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-49960", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
