CVE-2022-48933
See a problem?- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-48933
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48933.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-48933
- Related
- Published
- 2024-08-22T04:15:16Z
- Modified
- 2024-09-18T03:22:40.379330Z
- 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:
netfilter: nf_tables: fix memory leak during stateful obj update
stateful objects can be updated from the control plane. The transaction logic allocates a temporary object for this purpose.
The ->init function was called for this object, so plain kfree() leaks resources. We must call ->destroy function of the object.
nftobjdestroy does this, but it also decrements the module refcount, but the update path doesn't increment it.
To avoid special-casing the update object release, do moduleget for the update case too and release it via nftobj_destroy().
- References
-
- https://git.kernel.org/stable/c/34bb90e407e3288f610558beaae54ecaa32b11c4
- https://git.kernel.org/stable/c/53026346a94c43f35c32b18804041bc483271d87
- https://git.kernel.org/stable/c/7e9880e81d3fd6a43c202f205717485290432826
- https://git.kernel.org/stable/c/dad3bdeef45f81a6e90204bcc85360bb76eccec7
- https://git.kernel.org/stable/c/e96e204ee6fa46702f6c94c3c69a09e69e0eac52
- https://security-tracker.debian.org/tracker/CVE-2022-48933
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 affectedFixed5.10.103-1
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