Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: use two-phase skb reclamation in ieee80211_do_stop() Since '__dev_queue_xmit()' should be called with interrupts enabled, the following backtrace: ieee80211_do_stop() ... spin_lock_irqsave(&local->queue_stop_reason_lock, flags) ... ieee80211_free_txskb() ieee80211_report_used_skb() ieee80211_report_ack_skb() cfg80211_mgmt_tx_status_ext() nl80211_frame_tx_status() genlmsg_multicast_netns() genlmsg_multicast_netns_filtered() nlmsg_multicast_filtered() netlink_broadcast_filtered() do_one_broadcast() netlink_broadcast_deliver() __netlink_sendskb() netlink_deliver_tap() __netlink_deliver_tap_skb() dev_queue_xmit() __dev_queue_xmit() ; with IRQS disabled ... spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags) issues the warning (as reported by syzbot reproducer): WARNING: CPU: 2 PID: 5128 at kernel/softirq.c:362 __local_bh_enable_ip+0xc3/0x120 Fix this by implementing a two-phase skb reclamation in 'ieee80211_do_stop()', where actual work is performed outside of a section with interrupts disabled.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5061b0c2b9066de426fbc63f1278d2210e789412 before 07eb0bd7b0a8abed9d45e0f567c9af1dc83e5268; affected 5061b0c2b9066de426fbc63f1278d2210e789412 before 04f75f5bae33349283d6886901d9acd2f110c024; affected 5061b0c2b9066de426fbc63f1278d2210e789412 before f232916fab67ca1c3425926df4a866e59ff26908; affected 5061b0c2b9066de426fbc63f1278d2210e789412 before acb53a716e492a02479345157c43f21edc8bc64b; affected 5061b0c2b9066de426fbc63f1278d2210e789412 before db5ca4b42ccfa42d2af7b335ff12578e57775c02; affected 5061b0c2b9066de426fbc63f1278d2210e789412 before 058c9026ad79dc98572442fd4c7e9a36aba6f596; affected 5061b0c2b9066de426fbc63f1278d2210e789412 before eab272972cffff9cd973b8e4055a8e81c64f7e6a; affected 5061b0c2b9066de426fbc63f1278d2210e789412 before ad4b7068b101fbbb4a9ca4b99b25eb051a9482ec; affected 5061b0c2b9066de426fbc63f1278d2210e789412 before 9d301de12da6e1bb069a9835c38359b8e8135121 |
| Linux / Linux | affected 2.6.32; unaffected 0 before 2.6.32; unaffected 4.19.323 through 4.19.*; unaffected 5.4.285 through 5.4.*; unaffected 5.10.227 through 5.10.*; unaffected 5.15.168 through 5.15.*; unaffected 6.1.113 through 6.1.*; unaffected 6.6.54 through 6.6.*; unaffected 6.10.13 through 6.10.*; unaffected 6.11.2 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/07eb0bd7b0a8abed9d45e0f567c9af1dc83e5268
- https://git.kernel.org/stable/c/04f75f5bae33349283d6886901d9acd2f110c024
- https://git.kernel.org/stable/c/f232916fab67ca1c3425926df4a866e59ff26908
- https://git.kernel.org/stable/c/acb53a716e492a02479345157c43f21edc8bc64b
- https://git.kernel.org/stable/c/db5ca4b42ccfa42d2af7b335ff12578e57775c02
- https://git.kernel.org/stable/c/058c9026ad79dc98572442fd4c7e9a36aba6f596
- https://git.kernel.org/stable/c/eab272972cffff9cd973b8e4055a8e81c64f7e6a
- https://git.kernel.org/stable/c/ad4b7068b101fbbb4a9ca4b99b25eb051a9482ec
- https://git.kernel.org/stable/c/9d301de12da6e1bb069a9835c38359b8e8135121
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
No English description supplied.