CVE-2023-53281
- Source
- https://cve.org/CVERecord?id=CVE-2023-53281
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53281.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-53281
- Downstream
BELL (1)
DEBIAN (1)
UBUNTU (1)
- Related
- Published
- 2025-09-16T08:11:15Z
- Modified
- 2026-10-20T10:30:46Z
- 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
- drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()
Commit 041879b12ddb ("drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()") besides fixing the deadlock also modified rtw_join_timeout_handler() to use spin[un]lock_irq() instead of spin_[un]lock_bh().
rtw_join_timeout_handler() calls rtw_do_join() which takes pmlmepriv->scanned_queue.lock using spin[un]lock_bh(). This spin_unlock_bh() call re-enables softirqs which triggers an oops in kernel/softirq.c: __local_bh_enable_ip() when it calls lockdep_assert_irqs_enabled():
[ 244.506087] WARNING: CPU: 2 PID: 0 at kernel/softirq.c:376 __local_bh_enable_ip+0xa6/0x100 ... [ 244.509022] Call Trace: [ 244.509048] [ 244.509100] _rtw_join_timeout_handler+0x134/0x170 [r8723bs] [ 244.509468] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs] [ 244.509772] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs] [ 244.510076] call_timer_fn+0x95/0x2a0 [ 244.510200] __run_timers.part.0+0x1da/0x2d0
This oops is causd by the switch to spin_[un]lock_irq() which disables the IRQs for the entire duration of _rtw_join_timeout_handler().
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]lock_bh() to fix this.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53281.json" }- References
-
- https://git.kernel.org/stable/c/209850f17717a3b5cc558578bef5631ac7045539
- https://git.kernel.org/stable/c/215792eda008f6a1e7ed9d77fa20d582d22bb114
- https://git.kernel.org/stable/c/2a50e44a66d268ee5db3d177f1fdc1503dbce6e7
- https://git.kernel.org/stable/c/4ab1bace1dd3875371b481ef4301c4671bddea22
- https://git.kernel.org/stable/c/dc327e87c6d9bfd9ee08e76396b3c0ba848ec554
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53281.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-53281
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedae60744d5fad840b9d056d35b4b652d95e755846Fixed209850f17717a3b5cc558578bef5631ac7045539
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced041879b12ddb0c6c83ed9c0bdd10dc82a056f2fcFixed2a50e44a66d268ee5db3d177f1fdc1503dbce6e7Fixeddc327e87c6d9bfd9ee08e76396b3c0ba848ec554Fixed4ab1bace1dd3875371b481ef4301c4671bddea22Fixed215792eda008f6a1e7ed9d77fa20d582d22bb114
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.15.47Fixed5.15.111
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.17.15Fixed5.18
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.18.4Fixed5.19
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeca9748d9267a38d532464e3305a38629e9c35a9
Affected versions
v5.*
Linux / Kernel
Package
- Name
- Kernel