DEBIAN-CVE-2023-53281
- Source
- https://security-tracker.debian.org/tracker/CVE-2023-53281
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53281.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-53281
- Upstream
- Published
- 2025-09-16T08:15:37Z
- Modified
- 2025-09-19T07:33:41.233332Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8723bs: Fix locking in rtwjointimeouthandler() Commit 041879b12ddb ("drivers: staging: rtl8192bs: Fix deadlock in rtwjoinbsseventprehandle()") besides fixing the deadlock also modified _rtwjointimeouthandler() to use spin[un]lockirq() instead of spin[un]lockbh(). rtwjointimeouthandler() calls rtwdojoin() which takes pmlmepriv->scannedqueue.lock using spin[un]lockbh(). This spinunlockbh() call re-enables softirqs which triggers an oops in kernel/softirq.c: localbhenableip() when it calls lockdepassertirqsenabled(): [ 244.506087] WARNING: CPU: 2 PID: 0 at kernel/softirq.c:376 _localbhenableip+0xa6/0x100 ... [ 244.509022] Call Trace: [ 244.509048] <IRQ> [ 244.509100] _rtwjointimeouthandler+0x134/0x170 [r8723bs] [ 244.509468] ? _pfxrtwjointimeouthandler+0x10/0x10 [r8723bs] [ 244.509772] ? pfxrtwjointimeouthandler+0x10/0x10 [r8723bs] [ 244.510076] calltimerfn+0x95/0x2a0 [ 244.510200] _runtimers.part.0+0x1da/0x2d0 This oops is causd by the switch to spin[un]lockirq() which disables the IRQs for the entire duration of _rtwjointimeouthandler(). Disabling the IRQs is not necessary since all code taking this lock runs from either user contexts or from softirqs, switch back to spin[un]lockbh() to fix this.
- References
Affected packages
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
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source