{ "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-2025-68337", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-68337", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-12-22T16:14:14.145Z", "updatedAt": "2026-10-15T01:09:52.527Z", "importedAt": "2026-10-24T01:57:44.935Z", "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: avoid bug_on in jbd2_journal_get_create_access() when file system corrupted", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: avoid bug_on in jbd2_journal_get_create_access() when file system corrupted\n\nThere's issue when file system corrupted:\n------------[ cut here ]------------\nkernel BUG at fs/jbd2/transaction.c:1289!\nOops: invalid opcode: 0000 [#1] SMP KASAN PTI\nCPU: 5 UID: 0 PID: 2031 Comm: mkdir Not tainted 6.18.0-rc1-next\nRIP: 0010:jbd2_journal_get_create_access+0x3b6/0x4d0\nRSP: 0018:ffff888117aafa30 EFLAGS: 00010202\nRAX: 0000000000000000 RBX: ffff88811a86b000 RCX: ffffffff89a63534\nRDX: 1ffff110200ec602 RSI: 0000000000000004 RDI: ffff888100763010\nRBP: ffff888100763000 R08: 0000000000000001 R09: ffff888100763028\nR10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000\nR13: ffff88812c432000 R14: ffff88812c608000 R15: ffff888120bfc000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f91d6970c99 CR3: 00000001159c4000 CR4: 00000000000006f0\nCall Trace:\n \n __ext4_journal_get_create_access+0x42/0x170\n ext4_getblk+0x319/0x6f0\n ext4_bread+0x11/0x100\n ext4_append+0x1e6/0x4a0\n ext4_init_new_dir+0x145/0x1d0\n ext4_mkdir+0x326/0x920\n vfs_mkdir+0x45c/0x740\n do_mkdirat+0x234/0x2f0\n __x64_sys_mkdir+0xd6/0x120\n do_syscall_64+0x5f/0xfa0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThe above issue occurs with us in errors=continue mode when accompanied by\nstorage failures. There have been many inconsistencies in the file system\ndata.\nIn the case of file system data inconsistency, for example, if the block\nbitmap of a referenced block is not set, it can lead to the situation where\na block being committed is allocated and used again. As a result, the\nfollowing condition will not be satisfied then trigger BUG_ON. Of course,\nit is entirely possible to construct a problematic image that can trigger\nthis BUG_ON through specific operations. In fact, I have constructed such\nan image and easily reproduced this issue.\nTherefore, J_ASSERT() holds true only under ideal conditions, but it may\nnot necessarily be satisfied in exceptional scenarios. Using J_ASSERT()\ndirectly in abnormal situations would cause the system to crash, which is\nclearly not what we want. So here we directly trigger a JBD abort instead\nof immediately invoking BUG_ON.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "71bbe06c40fc59b5b15661eca8ff307f4176d7f9" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "ed62fd8c15d41c4127ad16b8219b63124f5962bc" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "3faac6531d4818cd6be45e5bbf32937bbbc795c0" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "b4f8eabf6d991bd41fabcdf9302c4b3eab590cf4" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "a2a7f854d154a3e9232fec80782dad951655f52f" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "bf34c72337e40c4670cceeb79b353356933a254b" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "aa1703f3f706ea0867fb1991dcac709c9ec94cfb" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "986835bf4d11032bba4ab8414d18fce038c61bb4" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.19", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.19" }, { "version": "5.10.248", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.198", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.160", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.120", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.62", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.17.12", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.17.*" }, { "version": "6.18.1", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "6.19", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }