269 lines
13 KiB
JSON
269 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-31596",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-03-09T15:48:24.121Z",
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"datePublished": "2026-04-24T14:42:22.003Z",
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"dateUpdated": "2026-06-14T17:42:37.033Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-06-14T17:42:37.033Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: handle invalid dinode in ocfs2_group_extend\n\n[BUG]\nkernel BUG at fs/ocfs2/resize.c:308!\nOops: invalid opcode: 0000 [#1] SMP KASAN NOPTI\nRIP: 0010:ocfs2_group_extend+0x10aa/0x1ae0 fs/ocfs2/resize.c:308\nCode: 8b8520ff ffff83f8 860f8580 030000e8 5cc3c1fe\nCall Trace:\n ...\n ocfs2_ioctl+0x175/0x6e0 fs/ocfs2/ioctl.c:869\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:597 [inline]\n __se_sys_ioctl fs/ioctl.c:583 [inline]\n __x64_sys_ioctl+0x197/0x1e0 fs/ioctl.c:583\n x64_sys_call+0x1144/0x26a0 arch/x86/include/generated/asm/syscalls_64.h:17\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0x93/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n ...\n\n[CAUSE]\nocfs2_group_extend() assumes that the global bitmap inode block\nreturned from ocfs2_inode_lock() has already been validated and\nBUG_ONs when the signature is not a dinode. That assumption is too\nstrong for crafted filesystems because the JBD2-managed buffer path\ncan bypass structural validation and return an invalid dinode to the\nresize ioctl.\n\n[FIX]\nValidate the dinode explicitly in ocfs2_group_extend(). If the global\nbitmap buffer does not contain a valid dinode, report filesystem\ncorruption with ocfs2_error() and fail the resize operation instead of\ncrashing the kernel."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ocfs2/resize.c"
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],
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"versions": [
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{
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"version": "10995aa2451afa20b721cc7de856cae1a13dba57",
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"lessThan": "7eafcf507fbd68f3276c00f6c02ef155ad69f79b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "10995aa2451afa20b721cc7de856cae1a13dba57",
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"lessThan": "fabfa6b81bd386154d7e59f8cd8f760f9e68b48c",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "10995aa2451afa20b721cc7de856cae1a13dba57",
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"lessThan": "b328d8e7c437d0f026ba2c13788af6eae77700f1",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "10995aa2451afa20b721cc7de856cae1a13dba57",
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"lessThan": "6575f9fbf084502b7118a628425bf7866666498d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "10995aa2451afa20b721cc7de856cae1a13dba57",
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"lessThan": "911b557dd7817460881fd51a03069b539c674d0e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "10995aa2451afa20b721cc7de856cae1a13dba57",
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"lessThan": "e384a850a3370d89a7a446cdeccd964bfba2a302",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "10995aa2451afa20b721cc7de856cae1a13dba57",
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"lessThan": "10fb72c47aac446f12a4ccd962c7daa60cc890a1",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "10995aa2451afa20b721cc7de856cae1a13dba57",
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"lessThan": "41c6e9bc3a09539deab43957a3211d902a4818f0",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "10995aa2451afa20b721cc7de856cae1a13dba57",
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"lessThan": "4a1c0ddc6e7bcf2e9db0eeaab9340dcfe97f448f",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ocfs2/resize.c"
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],
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"versions": [
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{
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"version": "2.6.29",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.29",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.258",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.209",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.175",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.136",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.83",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.24",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19.14",
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"lessThanOrEqual": "6.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0.1",
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"lessThanOrEqual": "7.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "5.10.258"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "5.15.209"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "6.1.175"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "6.6.136"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "6.12.83"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "6.18.24"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "6.19.14"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "7.0.1"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.29",
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"versionEndExcluding": "7.1"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/7eafcf507fbd68f3276c00f6c02ef155ad69f79b"
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},
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{
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"url": "https://git.kernel.org/stable/c/fabfa6b81bd386154d7e59f8cd8f760f9e68b48c"
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},
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{
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"url": "https://git.kernel.org/stable/c/b328d8e7c437d0f026ba2c13788af6eae77700f1"
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},
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{
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"url": "https://git.kernel.org/stable/c/6575f9fbf084502b7118a628425bf7866666498d"
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},
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{
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"url": "https://git.kernel.org/stable/c/911b557dd7817460881fd51a03069b539c674d0e"
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},
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{
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"url": "https://git.kernel.org/stable/c/e384a850a3370d89a7a446cdeccd964bfba2a302"
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},
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{
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"url": "https://git.kernel.org/stable/c/10fb72c47aac446f12a4ccd962c7daa60cc890a1"
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},
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{
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"url": "https://git.kernel.org/stable/c/41c6e9bc3a09539deab43957a3211d902a4818f0"
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},
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{
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"url": "https://git.kernel.org/stable/c/4a1c0ddc6e7bcf2e9db0eeaab9340dcfe97f448f"
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}
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],
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"title": "ocfs2: handle invalid dinode in ocfs2_group_extend",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |