CVE-2021-46924
See a problem?- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-46924
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46924.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-46924
- Related
- Published
- 2024-02-27T10:15:07Z
- Modified
- 2024-09-18T03:17:14.601377Z
- 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:
NFC: st21nfca: Fix memory leak in device probe and remove
'phy->pending_skb' is alloced when device probe, but forgot to free in the error handling path and remove path, this cause memory leak as follows:
unreferenced object 0xffff88800bc06800 (size 512): comm "8", pid 11775, jiffies 4295159829 (age 9.032s) 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: [<00000000d66c09ce>] _kmallocnodetrackcaller+0x1ed/0x450 [<00000000c93382b3>] kmallocreserve+0x37/0xd0 [<000000005fea522c>] _allocskb+0x124/0x380 [<0000000019f29f9a>] st21nfcahcii2cprobe+0x170/0x8f2
Fix it by freeing 'pending_skb' in error and remove.
- References
-
- https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c
- https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b
- https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe
- https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d
- https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349
- https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4
- https://security-tracker.debian.org/tracker/CVE-2021-46924
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
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