CVE-2022-50082

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Source
https://cve.org/CVERecord?id=CVE-2022-50082
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50082.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-50082
Downstream
Published
2025-06-18T11:02:24.530Z
Modified
2026-07-15T01:49:07.933474117Z
Summary
ext4: fix warning in ext4_iomap_begin as race between bmap and write
Details

In the Linux kernel, the following vulnerability has been resolved:

ext4: fix warning in ext4iomapbegin as race between bmap and write

We got issue as follows: ------------[ cut here ]------------ WARNING: CPU: 3 PID: 9310 at fs/ext4/inode.c:3441 ext4iomapbegin+0x182/0x5d0 RIP: 0010:ext4iomapbegin+0x182/0x5d0 RSP: 0018:ffff88812460fa08 EFLAGS: 00010293 RAX: ffff88811f168000 RBX: 0000000000000000 RCX: ffffffff97793c12 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff88812c669160 R08: ffff88811f168000 R09: ffffed10258cd20f R10: ffff88812c669077 R11: ffffed10258cd20e R12: 0000000000000001 R13: 00000000000000a4 R14: 000000000000000c R15: ffff88812c6691ee FS: 00007fd0d6ff3740(0000) GS:ffff8883af180000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd0d6dda290 CR3: 0000000104a62000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomapapply+0x119/0x570 iomapbmap+0x124/0x150 ext4bmap+0x14f/0x250 bmap+0x55/0x80 dovfs_ioctl+0x952/0xbd0 __x64sysioctl+0xc6/0x170 dosyscall64+0x33/0x40 entrySYSCALL64afterhwframe+0x44/0xa9

Above issue may happen as follows: bmap write bmap ext4bmap iomapbmap ext4iomapbegin ext4filewriteiter ext4bufferedwriteiter genericperformwrite ext4dawritebegin ext4dawriteinlinedatabegin ext4prepareinlinedata ext4createinlinedata ext4setinodeflag(inode, EXT4INODEINLINEDATA); if (WARNONONCE(ext4hasinlinedata(inode))) ->trigger bugon

To solved above issue hold inode lock in ext4_bamp.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50082.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
ac58e4fb03f9d111d733a4ad379d06eef3a24705
Fixed
e1682c7171a6c0ff576fe8116b8cba5b8f538b94
Fixed
30dfb75e1f8645404a536c74d468d498adcd4e74
Fixed
a9fe6d1e3d343d7309f501b1f48020ce7127221f
Fixed
fa6482f374fda29a71ad44d76d35b4842d43cda4
Fixed
51ae846cff568c8c29921b1b28eb2dfbcd4ac12d

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50082.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.7.0
Fixed
5.10.137
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.61
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
5.18.18
Type
ECOSYSTEM
Events
Introduced
5.19.0
Fixed
5.19.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50082.json"