CVE-2022-49381
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49381
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49381.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49381
- Related
- Published
- 2025-02-26T07:01:14Z
- Modified
- 2025-04-14T23:00:54.688404Z
- Downstream
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
jffs2: fix memory leak in jffs2dofill_super
If jffs2iget() or dmakeroot() in jffs2dofillsuper() returns an error, we can observe the following kmemleak report:
unreferenced object 0xffff888105a65340 (size 64): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff859c45e5>] kmemcachealloctrace+0x475/0x8a0 [<ffffffff86160146>] jffs2suminit+0x96/0x1a0 [<ffffffff86140e25>] jffs2domountfs+0x745/0x2120 [<ffffffff86149fec>] jffs2dofillsuper+0x35c/0x810 [<ffffffff8614aae9>] jffs2fillsuper+0x2b9/0x3b0 [...] unreferenced object 0xffff8881bd7f0000 (size 65536): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [<ffffffff858579ba>] kmallocorder+0xda/0x110 [<ffffffff85857a11>] kmallocordertrace+0x21/0x130 [<ffffffff859c2ed1>] _kmalloc+0x711/0x8a0 [<ffffffff86160189>] jffs2suminit+0xd9/0x1a0 [<ffffffff86140e25>] jffs2domountfs+0x745/0x2120 [<ffffffff86149fec>] jffs2dofillsuper+0x35c/0x810 [<ffffffff8614aae9>] jffs2fill_super+0x2b9/0x3b0
[...]
This is because the resources allocated in jffs2suminit() are not released. Call jffs2sumexit() to release these resources to solve the problem.
- References
-
- https://git.kernel.org/stable/c/28048a4cf3813b7cf5cc8cce629dfdc7951cb1c2
- https://git.kernel.org/stable/c/3252d327f977b14663a10967f3b0930d6c325687
- https://git.kernel.org/stable/c/4ba7bbeab8009faf3a726e565d98816593ddd5b0
- https://git.kernel.org/stable/c/4da8763a3d2b684c773b72ed80fad40bc264bc40
- https://git.kernel.org/stable/c/69295267c481545f636b69ff341b8db75aa136b9
- https://git.kernel.org/stable/c/c14adb1cf70a984ed081c67e9d27bc3caad9537c
- https://git.kernel.org/stable/c/cf9db013e167bc8fc2ecd7a13ed97a37df0c9dab
- https://git.kernel.org/stable/c/d3a4fff1e7e408c32649030daa7c2c42a7e19a95
- https://git.kernel.org/stable/c/ecc53e58596542791e82eff00702f8af7a313f70
- https://security-tracker.debian.org/tracker/CVE-2022-49381
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.10.127-1
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source