CVE-2022-49277
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49277
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49277.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49277
- Related
- Published
- 2025-02-26T07:01:04Z
- Modified
- 2025-04-14T18:50:08.033437Z
- 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 jffs2domount_fs
If jffs2buildfilesystem() in jffs2domount_fs() returns an error, we can observe the following kmemleak report:
unreferenced object 0xffff88811b25a640 (size 64): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) 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: [<ffffffffa493be24>] kmemcachealloctrace+0x584/0x880 [<ffffffffa5423a06>] jffs2suminit+0x86/0x130 [<ffffffffa5400e58>] jffs2domountfs+0x798/0xac0 [<ffffffffa540acf3>] jffs2dofillsuper+0x383/0xc30 [<ffffffffa540c00a>] jffs2fillsuper+0x2ea/0x4c0 [...] unreferenced object 0xffff88812c760000 (size 65536): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) 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: [<ffffffffa493a449>] _kmalloc+0x6b9/0x910 [<ffffffffa5423a57>] jffs2suminit+0xd7/0x130 [<ffffffffa5400e58>] jffs2domountfs+0x798/0xac0 [<ffffffffa540acf3>] jffs2dofillsuper+0x383/0xc30 [<ffffffffa540c00a>] jffs2fillsuper+0x2ea/0x4c0
[...]
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/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9
- https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834
- https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88
- https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699
- https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca
- https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699
- https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af
- https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c
- https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112
- https://security-tracker.debian.org/tracker/CVE-2022-49277
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 affectedFixed5.10.113-1
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