CVE-2022-49849
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49849
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49849.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49849
- Downstream
- Published
- 2025-05-01T14:10:04.480Z
- Modified
- 2025-11-29T00:56:43.499838Z
- Summary
- btrfs: fix match incorrectly in dev_args_match_device
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix match incorrectly in devargsmatch_device
syzkaller found a failed assertion:
assertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921
This can be triggered when we set devid to (u64)-1 by ioctl. In this case, the match of devid will be skipped and the match of device may succeed incorrectly.
Patch 562d7b1512f7 introduced this function which is used to match device. This function contains two matching scenarios, we can distinguish them by checking the value of args->missing rather than check whether args->devid and args->uuid is default value.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49849.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0fca385d6ebc3cabb20f67bcf8a71f1448bdc001
- https://git.kernel.org/stable/c/bc6c127c377010f136360552ebf91c2723081c1b
- https://git.kernel.org/stable/c/c9fe4719c662e0af17eea723cf345e37719fd3c9
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49849.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49849
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
-
Introduced5578b681fbf2b22d61189a2539efd3009518b328Fixedc9fe4719c662e0af17eea723cf345e37719fd3c9
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced562d7b1512f7369a19bca2883e2e8672d78f0481Fixedbc6c127c377010f136360552ebf91c2723081c1bFixed0fca385d6ebc3cabb20f67bcf8a71f1448bdc001
Affected versions
v5.*
v5.15
v5.15.54
v5.15.55
v5.15.56
v5.15.57
v5.15.58
v5.15.59
v5.15.60
v5.15.61
v5.15.62
v5.15.63
v5.15.64
v5.15.65
v5.15.66
v5.15.67
v5.15.68
v5.15.69
v5.15.70
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
v5.15.77
v5.15.78
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.0.1
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8