CVE-2023-53281 (GCVE-0-2023-53281)

Vulnerability from cvelistv5 – Published: 2025-09-16 08:11 – Updated: 2026-01-14 18:12
VLAI?
Title
drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()
Summary
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] <IRQ> [ 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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ae60744d5fad840b9d056d35b4b652d95e755846 , < 209850f17717a3b5cc558578bef5631ac7045539 (git)
Affected: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc , < 2a50e44a66d268ee5db3d177f1fdc1503dbce6e7 (git)
Affected: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc , < dc327e87c6d9bfd9ee08e76396b3c0ba848ec554 (git)
Affected: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc , < 4ab1bace1dd3875371b481ef4301c4671bddea22 (git)
Affected: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc , < 215792eda008f6a1e7ed9d77fa20d582d22bb114 (git)
Affected: 1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee (git)
Affected: eca9748d9267a38d532464e3305a38629e9c35a9 (git)
Create a notification for this product.
    Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 5.15.111 , ≤ 5.15.* (semver)
Unaffected: 6.1.28 , ≤ 6.1.* (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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