CVE-2022-50546
published 2025-10-07CVE-2022-50546: In the Linux kernel, the following vulnerability has been resolved: ext4: fix uninititialized value in 'ext4_evict_inode' Syzbot found the following issue…
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.20%
10.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix uninititialized value in 'ext4_evict_inode'
Syzbot found the following issue:
BUG: KMSAN: uninit-value in ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180
ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180
evict+0x365/0x9a0 fs/inode.c:664
iput_final fs/inode.c:1747 [inline]
iput+0x985/0xdd0 fs/inode.c:1773
__ext4_new_inode+0xe54/0x7ec0 fs/ext4/ialloc.c:1361
ext4_mknod+0x376/0x840 fs/ext4/namei.c:2844
vfs_mknod+0x79d/0x830 fs/namei.c:3914
do_mknodat+0x47d/0xaa0
__do_sys_mknodat fs/namei.c:3992 [inline]
__se_sys_mknodat fs/namei.c:3989 [inline]
__ia32_sys_mknodat+0xeb/0x150 fs/namei.c:3989
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
__do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246
entry_SYSENTER_compat_after_hwframe+0x70/0x82
Uninit was created at:
__alloc_pages+0x9f1/0xe80 mm/page_alloc.c:5578
alloc_pages+0xaae/0xd80 mm/mempolicy.c:2285
alloc_slab_page mm/slub.c:1794 [inline]
allocate_slab+0x1b5/0x1010 mm/slub.c:1939
new_slab mm/slub.c:1992 [inline]
___slab_alloc+0x10c3/0x2d60 mm/slub.c:3180
__slab_alloc mm/slub.c:3279 [inline]
slab_alloc_node mm/slub.c:3364 [inline]
slab_alloc mm/slub.c:3406 [inline]
__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
kmem_cache_alloc_lru+0x6f3/0xb30 mm/slub.c:3429
alloc_inode_sb include/linux/fs.h:3117 [inline]
ext4_alloc_inode+0x5f/0x860 fs/ext4/super.c:1321
alloc_inode+0x83/0x440 fs/inode.c:259
new_inode_pseudo fs/inode.c:1018 [inline]
new_inode+0x3b/0x430 fs/inode.c:1046
__ext4_new_inode+0x2a7/0x7ec0 fs/ext4/ialloc.c:959
ext4_mkdir+0x4d5/0x1560 fs/ext4/namei.c:2992
vfs_mkdir+0x62a/0x870 fs/namei.c:4035
do_mkdirat+0x466/0x7b0 fs/namei.c:4060
__do_sys_mkdirat fs/namei.c:4075 [inline]
__se_sys_mkdirat fs/namei.c:4073 [inline]
__ia32_sys_mkdirat+0xc4/0x120 fs/namei.c:4073
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inli
Affected
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.4-1 (bookworm) | linux 6.1.4-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 0b885394fd009aa0b46d81b496a816ab11309f8a < 3c31d8d3ad95aef8cc17a4fcf317e46217148439 | 3c31d8d3ad95aef8cc17a4fcf317e46217148439 |
| linux | linux | >= 0e6fbc566fcc4c230bf80f76cf5df26b42142d8a < 091f85db4c3fb1734a6d7fb4777a2b2831da6631 | 091f85db4c3fb1734a6d7fb4777a2b2831da6631 |
| linux | linux | >= 5.10.163 < 5.10.164 | 5.10.164 |
| linux | linux | >= 5.15.61 < 5.15.87 | 5.15.87 |
| linux | linux | >= 5.18.18 < 5.19 | 5.19 |
| linux | linux | >= 5.19.2 < 5.20 | 5.20 |
| linux | linux | >= 6bc0d63dad7f9f54d381925ee855b402f652fa39 < 56491d60ddca9c697d885394cb0173675b9ab81f | 56491d60ddca9c697d885394cb0173675b9ab81f |
| linux | linux | >= 6bc0d63dad7f9f54d381925ee855b402f652fa39 < 9f966e021c20caae639dd0e404c8761e8281a2c4 | 9f966e021c20caae639dd0e404c8761e8281a2c4 |
| linux | linux | >= 6bc0d63dad7f9f54d381925ee855b402f652fa39 < 7ea71af94eaaaf6d9aed24bc94a05b977a741cb9 | 7ea71af94eaaaf6d9aed24bc94a05b977a741cb9 |
| linux | linux | >= a5f9bd4beae8553480d02b569d4aabee1b49345d < e431b4fb1fb8c2654b808086e9747a000adb9655 | e431b4fb1fb8c2654b808086e9747a000adb9655 |
| linux | linux | >= bb337d8dd1e1d6b7719872e45e36392f3ab14b4f < f0bffdcc7cb14598af2aa706f1e0f2a9054154ba | f0bffdcc7cb14598af2aa706f1e0f2a9054154ba |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 5.15.61 < 5.15.87 | 5.15.87 |
| linux | linux_kernel | >= 5.18.18 < 5.19 | 5.19 |
| linux | linux_kernel | >= 5.19.2 < 6.0.18 | 6.0.18 |
| linux | linux_kernel | >= 6.1 < 6.1.4 | 6.1.4 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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Red Hat
kernel: ext4: fix uninititialized value in 'ext4_evict_inode'
vendor_redhat·2025-10-07·CVSS 7.8
CVE-2022-50546 [HIGH] CWE-908 kernel: ext4: fix uninititialized value in 'ext4_evict_inode'
kernel: ext4: fix uninititialized value in 'ext4_evict_inode'
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix uninititialized value in 'ext4_evict_inode'
Syzbot found the following issue:
BUG: KMSAN: uninit-value in ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180
ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180
evict+0x365/0x9a0 fs/inode.c:664
iput_final fs/inode.c:1747 [inline]
iput+0x985/0xdd0 fs/inode.c:1773
__ext4_new_inode+0xe54/0x7ec0 fs/ext4/ialloc.c:1361
ext4_mknod+0x376/0x840 fs/ext4/namei.c:2844
vfs_mknod+0x79d/0x830 fs/namei.c:3914
do_mknodat+0x47d/0xaa0
__do_sys_mknodat fs/namei.c:3992 [inline]
__se_sys_mknodat fs/namei.c:3989 [inline]
__ia32_sys_mknodat+0xeb/0x150 fs/namei.c:3989
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
__do_fa
Debian
CVE-2022-50546: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: fix u...
vendor_debian·2022·CVSS 7.8
CVE-2022-50546 [HIGH] CVE-2022-50546: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: fix u...
In the Linux kernel, the following vulnerability has been resolved: ext4: fix uninititialized value in 'ext4_evict_inode' Syzbot found the following issue: ===================================================== BUG: KMSAN: uninit-value in ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180 ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180 evict+0x365/0x9a0 fs/inode.c:664 iput_final fs/inode.c:1747 [inline] iput+0x985/0xdd0 fs/inode.c:1773 __ext4_new_inode+0xe54/0x7ec0 fs/ext4/ialloc.c:1361 ext4_mknod+0x376/0x840 fs/ext4/namei.c:2844 vfs_mknod+0x79d/0x830 fs/namei.c:3914 do_mknodat+0x47d/0xaa0 __do_sys_mknodat fs/namei.c:3992 [inline] __se_sys_mknodat fs/namei.c:3989 [inline] __ia32_sys_mknodat+0xeb/0x150 fs/namei.c:3989 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscal
VulDB
Linux Kernel up to 5.10.163/5.15.86/6.0.17/6.1.3 ext4 ext4_alloc_inode allocation of resources (EUVD-2025-32001 / Nessus ID 302981)
vuldb·2026-04-20·CVSS 7.8
CVE-2022-50546 [HIGH] Linux Kernel up to 5.10.163/5.15.86/6.0.17/6.1.3 ext4 ext4_alloc_inode allocation of resources (EUVD-2025-32001 / Nessus ID 302981)
A vulnerability was found in Linux Kernel up to 5.10.163/5.15.86/6.0.17/6.1.3. It has been declared as critical. Affected by this issue is the function ext4_alloc_inode of the component ext4. The manipulation results in allocation of resources.
This vulnerability was named CVE-2022-50546. The attack needs to be approached within the local network. There is no available exploit.
It is recommended to upgrade the affected component.
OSV
CVE-2022-50546: In the Linux kernel, the following vulnerability has been resolved: ext4: fix uninititialized value in 'ext4_evict_inode' Syzbot found the following i
osv·2025-10-07·CVSS 7.8
CVE-2022-50546 [HIGH] CVE-2022-50546: In the Linux kernel, the following vulnerability has been resolved: ext4: fix uninititialized value in 'ext4_evict_inode' Syzbot found the following i
In the Linux kernel, the following vulnerability has been resolved: ext4: fix uninititialized value in 'ext4_evict_inode' Syzbot found the following issue: ===================================================== BUG: KMSAN: uninit-value in ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180 ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180 evict+0x365/0x9a0 fs/inode.c:664 iput_final fs/inode.c:1747 [inline] iput+0x985/0xdd0 fs/inode.c:1773 __ext4_new_inode+0xe54/0x7ec0 fs/ext4/ialloc.c:1361 ext4_mknod+0x376/0x840 fs/ext4/namei.c:2844 vfs_mknod+0x79d/0x830 fs/namei.c:3914 do_mknodat+0x47d/0xaa0 __do_sys_mknodat fs/namei.c:3992 [inline] __se_sys_mknodat fs/namei.c:3989 [inline] __ia32_sys_mknodat+0xeb/0x150 fs/namei.c:3989 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscal
GHSA
GHSA-g2jp-ch4j-rcfr: In the Linux kernel, the following vulnerability has been resolved:
ext4: fix uninititialized value in 'ext4_evict_inode'
Syzbot found the following
ghsa_unreviewed·2025-10-07
CVE-2022-50546 [HIGH] CWE-908 GHSA-g2jp-ch4j-rcfr: In the Linux kernel, the following vulnerability has been resolved:
ext4: fix uninititialized value in 'ext4_evict_inode'
Syzbot found the following
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix uninititialized value in 'ext4_evict_inode'
Syzbot found the following issue:
BUG: KMSAN: uninit-value in ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180
ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180
evict+0x365/0x9a0 fs/inode.c:664
iput_final fs/inode.c:1747 [inline]
iput+0x985/0xdd0 fs/inode.c:1773
__ext4_new_inode+0xe54/0x7ec0 fs/ext4/ialloc.c:1361
ext4_mknod+0x376/0x840 fs/ext4/namei.c:2844
vfs_mknod+0x79d/0x830 fs/namei.c:3914
do_mknodat+0x47d/0xaa0
__do_sys_mknodat fs/namei.c:3992 [inline]
__se_sys_mknodat fs/namei.c:3989 [inline]
__ia32_sys_mknodat+0xeb/0x150 fs/namei.c:3989
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
__do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
do_fast_
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/091f85db4c3fb1734a6d7fb4777a2b2831da6631https://git.kernel.org/stable/c/3c31d8d3ad95aef8cc17a4fcf317e46217148439https://git.kernel.org/stable/c/56491d60ddca9c697d885394cb0173675b9ab81fhttps://git.kernel.org/stable/c/7ea71af94eaaaf6d9aed24bc94a05b977a741cb9https://git.kernel.org/stable/c/9f966e021c20caae639dd0e404c8761e8281a2c4https://git.kernel.org/stable/c/e431b4fb1fb8c2654b808086e9747a000adb9655https://git.kernel.org/stable/c/f0bffdcc7cb14598af2aa706f1e0f2a9054154ba
2025-10-07
Published