CVE-2024-47713

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux5061b0c2b9066de426fbc63f1278d2210e789412 < 07eb0bd7b0a8abed9d45e0f567c9af1dc83e5268affected
LinuxLinux5061b0c2b9066de426fbc63f1278d2210e789412 < 04f75f5bae33349283d6886901d9acd2f110c024affected
LinuxLinux5061b0c2b9066de426fbc63f1278d2210e789412 < f232916fab67ca1c3425926df4a866e59ff26908affected
LinuxLinux5061b0c2b9066de426fbc63f1278d2210e789412 < acb53a716e492a02479345157c43f21edc8bc64baffected
LinuxLinux5061b0c2b9066de426fbc63f1278d2210e789412 < db5ca4b42ccfa42d2af7b335ff12578e57775c02affected
LinuxLinux5061b0c2b9066de426fbc63f1278d2210e789412 < 058c9026ad79dc98572442fd4c7e9a36aba6f596affected
LinuxLinux5061b0c2b9066de426fbc63f1278d2210e789412 < eab272972cffff9cd973b8e4055a8e81c64f7e6aaffected
LinuxLinux5061b0c2b9066de426fbc63f1278d2210e789412 < ad4b7068b101fbbb4a9ca4b99b25eb051a9482ecaffected
LinuxLinux5061b0c2b9066de426fbc63f1278d2210e789412 < 9d301de12da6e1bb069a9835c38359b8e8135121affected
LinuxLinux2.6.32affected
LinuxLinux0 < 2.6.32unaffected
LinuxLinux4.19.323 <= 4.19.*unaffected
LinuxLinux5.4.285 <= 5.4.*unaffected
LinuxLinux5.10.227 <= 5.10.*unaffected
LinuxLinux5.15.168 <= 5.15.*unaffected
LinuxLinux6.1.113 <= 6.1.*unaffected
LinuxLinux6.6.54 <= 6.6.*unaffected
LinuxLinux6.10.13 <= 6.10.*unaffected
LinuxLinux6.11.2 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

Additional References

References