331 lines
16 KiB
JSON
331 lines
16 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2022-50344",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2025-09-16T16:03:27.881Z",
|
|
"datePublished": "2025-09-16T16:11:23.345Z",
|
|
"dateUpdated": "2026-05-11T19:17:37.555Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-05-11T19:17:37.555Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix null-ptr-deref in ext4_write_info\n\nI caught a null-ptr-deref bug as follows:\n==================================================================\nKASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]\nCPU: 1 PID: 1589 Comm: umount Not tainted 5.10.0-02219-dirty #339\nRIP: 0010:ext4_write_info+0x53/0x1b0\n[...]\nCall Trace:\n dquot_writeback_dquots+0x341/0x9a0\n ext4_sync_fs+0x19e/0x800\n __sync_filesystem+0x83/0x100\n sync_filesystem+0x89/0xf0\n generic_shutdown_super+0x79/0x3e0\n kill_block_super+0xa1/0x110\n deactivate_locked_super+0xac/0x130\n deactivate_super+0xb6/0xd0\n cleanup_mnt+0x289/0x400\n __cleanup_mnt+0x16/0x20\n task_work_run+0x11c/0x1c0\n exit_to_user_mode_prepare+0x203/0x210\n syscall_exit_to_user_mode+0x5b/0x3a0\n do_syscall_64+0x59/0x70\n entry_SYSCALL_64_after_hwframe+0x44/0xa9\n ==================================================================\n\nAbove issue may happen as follows:\n-------------------------------------\nexit_to_user_mode_prepare\n task_work_run\n __cleanup_mnt\n cleanup_mnt\n deactivate_super\n deactivate_locked_super\n kill_block_super\n generic_shutdown_super\n shrink_dcache_for_umount\n dentry = sb->s_root\n sb->s_root = NULL <--- Here set NULL\n sync_filesystem\n __sync_filesystem\n sb->s_op->sync_fs > ext4_sync_fs\n dquot_writeback_dquots\n sb->dq_op->write_info > ext4_write_info\n ext4_journal_start(d_inode(sb->s_root), EXT4_HT_QUOTA, 2)\n d_inode(sb->s_root)\n s_root->d_inode <--- Null pointer dereference\n\nTo solve this problem, we use ext4_journal_start_sb directly\nto avoid s_root being used."
|
|
}
|
|
],
|
|
"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"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "a1177825719ccef3f76ef39bbfd5ebb6087d53c7",
|
|
"lessThan": "dc451578446afd03c0c21913993c08898a691435",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a1177825719ccef3f76ef39bbfd5ebb6087d53c7",
|
|
"lessThan": "f4b5ff0b794aa94afac7269c494550ca2f66511b",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a1177825719ccef3f76ef39bbfd5ebb6087d53c7",
|
|
"lessThan": "947264e00c46de19a016fd81218118c708fed2f3",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a1177825719ccef3f76ef39bbfd5ebb6087d53c7",
|
|
"lessThan": "3638aa1c7d87c0ca0aef23cf58cae2c48e7daca4",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a1177825719ccef3f76ef39bbfd5ebb6087d53c7",
|
|
"lessThan": "f34ab95162763cd7352f46df169296eec28b688d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a1177825719ccef3f76ef39bbfd5ebb6087d53c7",
|
|
"lessThan": "533c60a0b97cee5daab376933f486207e6680fb7",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a1177825719ccef3f76ef39bbfd5ebb6087d53c7",
|
|
"lessThan": "4a657319cfabd6199fd0b7b65bbebf6ded7a11c1",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a1177825719ccef3f76ef39bbfd5ebb6087d53c7",
|
|
"lessThan": "bb420e8afc854d2a1caaa23a0c129839acfb7888",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a1177825719ccef3f76ef39bbfd5ebb6087d53c7",
|
|
"lessThan": "f9c1f248607d5546075d3f731e7607d5571f2b60",
|
|
"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/ext4/super.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "3.6",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "3.6",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "4.9.331",
|
|
"lessThanOrEqual": "4.9.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "4.14.296",
|
|
"lessThanOrEqual": "4.14.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "4.19.262",
|
|
"lessThanOrEqual": "4.19.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.4.220",
|
|
"lessThanOrEqual": "5.4.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.150",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.75",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.19.17",
|
|
"lessThanOrEqual": "5.19.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.0.3",
|
|
"lessThanOrEqual": "6.0.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.6",
|
|
"versionEndExcluding": "4.9.331"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.6",
|
|
"versionEndExcluding": "4.14.296"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.6",
|
|
"versionEndExcluding": "4.19.262"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.6",
|
|
"versionEndExcluding": "5.4.220"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.6",
|
|
"versionEndExcluding": "5.10.150"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.6",
|
|
"versionEndExcluding": "5.15.75"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.6",
|
|
"versionEndExcluding": "5.19.17"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.6",
|
|
"versionEndExcluding": "6.0.3"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.6",
|
|
"versionEndExcluding": "6.1"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/dc451578446afd03c0c21913993c08898a691435"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f4b5ff0b794aa94afac7269c494550ca2f66511b"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/947264e00c46de19a016fd81218118c708fed2f3"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/3638aa1c7d87c0ca0aef23cf58cae2c48e7daca4"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f34ab95162763cd7352f46df169296eec28b688d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/533c60a0b97cee5daab376933f486207e6680fb7"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/4a657319cfabd6199fd0b7b65bbebf6ded7a11c1"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/bb420e8afc854d2a1caaa23a0c129839acfb7888"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f9c1f248607d5546075d3f731e7607d5571f2b60"
|
|
}
|
|
],
|
|
"title": "ext4: fix null-ptr-deref in ext4_write_info",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"scope": "UNCHANGED",
|
|
"version": "3.1",
|
|
"baseScore": 5.5,
|
|
"attackVector": "LOCAL",
|
|
"baseSeverity": "MEDIUM",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
|
|
"integrityImpact": "NONE",
|
|
"userInteraction": "NONE",
|
|
"attackComplexity": "LOW",
|
|
"availabilityImpact": "HIGH",
|
|
"privilegesRequired": "LOW",
|
|
"confidentialityImpact": "NONE"
|
|
}
|
|
},
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2022-50344",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-01-14T18:20:39.263791Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"type": "CWE",
|
|
"cweId": "CWE-476",
|
|
"description": "CWE-476 NULL Pointer Dereference"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-01-14T18:22:58.181Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |