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vuln-cve/data/2022/50xxx/CVE-2022-50546.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2022-50546",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-10-07T15:15:38.667Z",
"datePublished": "2025-10-07T15:21:09.963Z",
"dateUpdated": "2026-05-23T15:24:44.590Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-23T15:24:44.590Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix uninititialized value in 'ext4_evict_inode'\n\nSyzbot found the following issue:\n=====================================================\nBUG: KMSAN: uninit-value in ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180\n ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180\n evict+0x365/0x9a0 fs/inode.c:664\n iput_final fs/inode.c:1747 [inline]\n iput+0x985/0xdd0 fs/inode.c:1773\n __ext4_new_inode+0xe54/0x7ec0 fs/ext4/ialloc.c:1361\n ext4_mknod+0x376/0x840 fs/ext4/namei.c:2844\n vfs_mknod+0x79d/0x830 fs/namei.c:3914\n do_mknodat+0x47d/0xaa0\n __do_sys_mknodat fs/namei.c:3992 [inline]\n __se_sys_mknodat fs/namei.c:3989 [inline]\n __ia32_sys_mknodat+0xeb/0x150 fs/namei.c:3989\n do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]\n __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178\n do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203\n do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246\n entry_SYSENTER_compat_after_hwframe+0x70/0x82\n\nUninit was created at:\n __alloc_pages+0x9f1/0xe80 mm/page_alloc.c:5578\n alloc_pages+0xaae/0xd80 mm/mempolicy.c:2285\n alloc_slab_page mm/slub.c:1794 [inline]\n allocate_slab+0x1b5/0x1010 mm/slub.c:1939\n new_slab mm/slub.c:1992 [inline]\n ___slab_alloc+0x10c3/0x2d60 mm/slub.c:3180\n __slab_alloc mm/slub.c:3279 [inline]\n slab_alloc_node mm/slub.c:3364 [inline]\n slab_alloc mm/slub.c:3406 [inline]\n __kmem_cache_alloc_lru mm/slub.c:3413 [inline]\n kmem_cache_alloc_lru+0x6f3/0xb30 mm/slub.c:3429\n alloc_inode_sb include/linux/fs.h:3117 [inline]\n ext4_alloc_inode+0x5f/0x860 fs/ext4/super.c:1321\n alloc_inode+0x83/0x440 fs/inode.c:259\n new_inode_pseudo fs/inode.c:1018 [inline]\n new_inode+0x3b/0x430 fs/inode.c:1046\n __ext4_new_inode+0x2a7/0x7ec0 fs/ext4/ialloc.c:959\n ext4_mkdir+0x4d5/0x1560 fs/ext4/namei.c:2992\n vfs_mkdir+0x62a/0x870 fs/namei.c:4035\n do_mkdirat+0x466/0x7b0 fs/namei.c:4060\n __do_sys_mkdirat fs/namei.c:4075 [inline]\n __se_sys_mkdirat fs/namei.c:4073 [inline]\n __ia32_sys_mkdirat+0xc4/0x120 fs/namei.c:4073\n do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]\n __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178\n do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203\n do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246\n entry_SYSENTER_compat_after_hwframe+0x70/0x82\n\nCPU: 1 PID: 4625 Comm: syz-executor.2 Not tainted 6.1.0-rc4-syzkaller-62821-gcb231e2f67ec #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\n=====================================================\n\nNow, 'ext4_alloc_inode()' didn't init 'ei->i_flags'. If new inode failed\nbefore set 'ei->i_flags' in '__ext4_new_inode()', then do 'iput()'. As after\n6bc0d63dad7f commit will access 'ei->i_flags' in 'ext4_evict_inode()' which\nwill lead to access uninit-value.\nTo solve above issue just init 'ei->i_flags' in 'ext4_alloc_inode()'."
}
],
"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": "bb337d8dd1e1d6b7719872e45e36392f3ab14b4f",
"lessThan": "f0bffdcc7cb14598af2aa706f1e0f2a9054154ba",
"status": "affected",
"versionType": "git"
},
{
"version": "a5f9bd4beae8553480d02b569d4aabee1b49345d",
"lessThan": "e431b4fb1fb8c2654b808086e9747a000adb9655",
"status": "affected",
"versionType": "git"
},
{
"version": "0e6fbc566fcc4c230bf80f76cf5df26b42142d8a",
"lessThan": "091f85db4c3fb1734a6d7fb4777a2b2831da6631",
"status": "affected",
"versionType": "git"
},
{
"version": "0b885394fd009aa0b46d81b496a816ab11309f8a",
"lessThan": "3c31d8d3ad95aef8cc17a4fcf317e46217148439",
"status": "affected",
"versionType": "git"
},
{
"version": "6bc0d63dad7f9f54d381925ee855b402f652fa39",
"lessThan": "56491d60ddca9c697d885394cb0173675b9ab81f",
"status": "affected",
"versionType": "git"
},
{
"version": "6bc0d63dad7f9f54d381925ee855b402f652fa39",
"lessThan": "9f966e021c20caae639dd0e404c8761e8281a2c4",
"status": "affected",
"versionType": "git"
},
{
"version": "6bc0d63dad7f9f54d381925ee855b402f652fa39",
"lessThan": "7ea71af94eaaaf6d9aed24bc94a05b977a741cb9",
"status": "affected",
"versionType": "git"
},
{
"version": "819d16f7feaca0f2ed3409be14fe953127fc51b6",
"status": "affected",
"versionType": "git"
},
{
"version": "458aee4a6e5be7ad862ee27dfaf07ce552d84f32",
"status": "affected",
"versionType": "git"
},
{
"version": "5.10.163",
"lessThan": "5.10.164",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.15.61",
"lessThan": "5.15.87",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.18.18",
"lessThan": "5.19",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.19.2",
"lessThan": "5.20",
"status": "affected",
"versionType": "semver"
}
]
},
{
"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": "6.0",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.0",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.164",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.87",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.0.18",
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.4",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.2",
"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": "5.10.163",
"versionEndExcluding": "5.10.164"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15.61",
"versionEndExcluding": "5.15.87"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.0",
"versionEndExcluding": "6.0.18"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.0",
"versionEndExcluding": "6.1.4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.0",
"versionEndExcluding": "6.2"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.18.18"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.19.2"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/f0bffdcc7cb14598af2aa706f1e0f2a9054154ba"
},
{
"url": "https://git.kernel.org/stable/c/e431b4fb1fb8c2654b808086e9747a000adb9655"
},
{
"url": "https://git.kernel.org/stable/c/091f85db4c3fb1734a6d7fb4777a2b2831da6631"
},
{
"url": "https://git.kernel.org/stable/c/3c31d8d3ad95aef8cc17a4fcf317e46217148439"
},
{
"url": "https://git.kernel.org/stable/c/56491d60ddca9c697d885394cb0173675b9ab81f"
},
{
"url": "https://git.kernel.org/stable/c/9f966e021c20caae639dd0e404c8761e8281a2c4"
},
{
"url": "https://git.kernel.org/stable/c/7ea71af94eaaaf6d9aed24bc94a05b977a741cb9"
}
],
"title": "ext4: fix uninititialized value in 'ext4_evict_inode'",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}
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