In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: Fix deadlock in ieee80211_sta_ps_deliver_wakeup()
The ieee80211_sta_ps_deliver_wakeup() function takes sta->ps_lock to synchronizes with ieee80211_tx_h_unicast_ps_buf() which is called from softirq context. However using only spin_lock() to get sta->ps_lock in ieee80211_sta_ps_deliver_wakeup() does not prevent softirq to execute on this same CPU, to run ieee80211_tx_h_unicast_ps_buf() and try to take this same lock ending in deadlock. Below is an example of rcu stall that arises in such situation.
rcu: INFO: rcu_sched self-detected stall on CPU rcu: 2-....: (42413413 ticks this GP) idle=b154/1/0x4000000000000000 softirq=1763/1765 fqs=21206996 rcu: (t=42586894 jiffies g=2057 q=362405 ncpus=4) CPU: 2 PID: 719 Comm: wpa_supplicant Tainted: G W 6.4.0-02158-g1b062f552873 #742 Hardware name: RPT (r1) (DT) pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : queued_spin_lock_slowpath+0x58/0x2d0 lr : invoke_tx_handlers_early+0x5b4/0x5c0 sp : ffff00001ef64660 x29: ffff00001ef64660 x28: ffff000009bc1070 x27: ffff000009bc0ad8 x26: ffff000009bc0900 x25: ffff00001ef647a8 x24: 0000000000000000 x23: ffff000009bc0900 x22: ffff000009bc0900 x21: ffff00000ac0e000 x20: ffff00000a279e00 x19: ffff00001ef646e8 x18: 0000000000000000 x17: ffff800016468000 x16: ffff00001ef608c0 x15: 0010533c93f64f80 x14: 0010395c9faa3946 x13: 0000000000000000 x12: 00000000fa83b2da x11: 000000012edeceea x10: ffff0000010fbe00 x9 : 0000000000895440 x8 : 000000000010533c x7 : ffff00000ad8b740 x6 : ffff00000c350880 x5 : 0000000000000007 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff00000ac0e0e8 Call trace: queued_spin_lock_slowpath+0x58/0x2d0 ieee80211_tx+0x80/0x12c ieee80211_tx_pending+0x110/0x278 tasklet_action_common.constprop.0+0x10c/0x144 tasklet_action+0x20/0x28 _stext+0x11c/0x284 ____do_softirq+0xc/0x14 call_on_irq_stack+0x24/0x34 do_softirq_own_stack+0x18/0x20 do_softirq+0x74/0x7c __local_bh_enable_ip+0xa0/0xa4 _ieee80211_wake_txqs+0x3b0/0x4b8 __ieee80211_wake_queue+0x12c/0x168 ieee80211_add_pending_skbs+0xec/0x138 ieee80211_sta_ps_deliver_wakeup+0x2a4/0x480 ieee80211_mps_sta_status_update.part.0+0xd8/0x11c ieee80211_mps_sta_status_update+0x18/0x24 sta_apply_parameters+0x3bc/0x4c0 ieee80211_change_station+0x1b8/0x2dc nl80211_set_station+0x444/0x49c genl_family_rcv_msg_doit.isra.0+0xa4/0xfc genl_rcv_msg+0x1b0/0x244 netlink_rcv_skb+0x38/0x10c genl_rcv+0x34/0x48 netlink_unicast+0x254/0x2bc netlink_sendmsg+0x190/0x3b4 ____sys_sendmsg+0x1e8/0x218 ___sys_sendmsg+0x68/0x8c __sys_sendmsg+0x44/0x84 __arm64_sys_sendmsg+0x20/0x28 do_el0_svc+0x6c/0xe8 el0_svc+0x14/0x48 el0t_64_sync_handler+0xb0/0xb4 el0t_64_sync+0x14c/0x150
Using spin_lock_bh()/spin_unlock_bh() instead prevents softirq to raise on the same CPU that is holding the lock.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-modules-extraUpgrade kernel-rt-modules-extraUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernelUpgrade kernel-cross-headersUpgrade kernel-debug-modulesUpgrade kernel-debug-modules-extraUpgrade kernel-debug-modules-coreUpgrade kernel-64k-debug-coreUpgrade kernel-rt-modules-coreUpgrade kernel-tools-libsUpgrade kernel-rt-kvmUpgrade kernel-rt-debug-modulesUpgrade kernel-zfcpdump-modulesUpgrade kernel-64k-modulesUpgrade kernel-debug-uki-virtUpgrade kernel-rt-debug-coreUpgrade kernel-64kUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-rt-debugUpgrade kernel-rt-develUpgrade kernel-64k-debug-develUpgrade kernel-64k-debugUpgrade kernel-64k-coreUpgrade kernel-64k-debug-modulesUpgrade kernel-uki-virtUpgrade kernel-coreUpgrade kernel-zfcpdump-develUpgrade kernel-zfcpdumpUpgrade kernel-debug-coreUpgrade kernel-64k-modules-coreUpgrade kernel-rt-debug-kvmUpgrade python3-perfUpgrade kernel-modules-coreUpgrade kernel-64k-modules-extraUpgrade kernel-debug-develUpgrade kernel-64k-devel-matchedUpgrade kernel-rt-debug-modules-coreUpgrade kernel-64k-develUpgrade kernel-tools-libs-develUpgrade kernel-headersUpgrade rtlaUpgrade kernel-64k-debug-devel-matchedUpgrade perfUpgrade kernel-zfcpdump-coreUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-toolsUpgrade libperfUpgrade kernel-rt-coreUpgrade kernel-rt-debug-develUpgrade kernel-devel-matchedUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-rt-modulesUpgrade kernel-debug-devel-matchedUpgrade kernel-rt-debug-modules-extraUpgrade kernel-debugUpgrade kernel-rtUpgrade kernel-develUpgrade kernel-docUpgrade kernel-modulesUpgrade kernel-64k-debug-modules-coreUpgrade rvUpgrade kernel-64k-debug-modules-extra | Sep 26, 2024 | Jul 12, 2024 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 17, 2024 | Jul 12, 2024 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Oct 16, 2024 | Jul 12, 2024 |
| Redhat_linux | — | Upgrade kernelNo solution existsUpgrade kernel-rt | Sep 25, 2024 | Jul 12, 2024 |
| Rocky_linux | — | Upgrade python3-perfUpgrade kernel-rt-debug-develUpgrade kernel-headersUpgrade kernel-rt-modulesUpgrade kernel-rt-debug-kvmUpgrade kernel-tools-libs-develUpgrade perf-debuginfoUpgrade kernel-rt-debug-modules-extraUpgrade perfUpgrade kernel-rtUpgrade bpftoolUpgrade kernel-rt-modules-extraUpgrade kernel-rt-debug-modulesUpgrade kernel-modulesUpgrade kernel-rt-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-modules-extraUpgrade kernel-debuginfoUpgrade kernel-develUpgrade python3-perf-debuginfoUpgrade kernel-debug-modulesUpgrade kernel-toolsUpgrade kernel-tools-debuginfoUpgrade kernel-rt-debuginfoUpgrade kernel-debug-modules-extraUpgrade kernel-rt-coreUpgrade kernel-rt-develUpgrade kernel-rt-debug-debuginfoUpgrade kernel-debug-develUpgrade kernel-debugUpgrade kernel-coreUpgrade kernelUpgrade kernel-rt-kvmUpgrade kernel-rt-debug-coreUpgrade kernel-debug-coreUpgrade kernel-cross-headersUpgrade kernel-rt-debugUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debug-debuginfoUpgrade kernel-tools-libs | Oct 2, 2024 | Jul 12, 2024 |
| Suse | — | Upgrade kernel-debug-livepatch-develUpgrade dtb-apmUpgrade kernel-kvmsmall-vdsoUpgrade kernel-source-azureUpgrade kernel-rt-livepatch-develUpgrade kernel-devel-azureUpgrade kernel-rt-optionalUpgrade kernel-source-rtUpgrade kernel-azure-baseUpgrade kernel-rt-extraUpgrade kernel-rt_debug-vdsoUpgrade kernel-azure-develUpgrade kernel-azure-livepatch-develUpgrade dtb-socionextUpgrade kernel-kvmsmall-develUpgrade kselftests-kmp-azureUpgrade kernel-zfcpdumpUpgrade dtb-exynosUpgrade kernel-syms-azureUpgrade dtb-qcomUpgrade kernel-obs-buildUpgrade cluster-md-kmp-defaultUpgrade kernel-default-livepatchUpgrade dtb-marvellUpgrade dtb-broadcomUpgrade dtb-freescaleUpgrade kernel-default-extraUpgrade kernel-default-manUpgrade dtb-appleUpgrade reiserfs-kmp-rtUpgrade dlm-kmp-azureUpgrade gfs2-kmp-rtUpgrade kernel-azure-extraUpgrade kernel-default-base-rebuildUpgrade kernel-rtUpgrade kernel-azure-vdsoUpgrade reiserfs-kmp-64kbUpgrade kernel-rt-vdsoUpgrade kernel-sourceUpgrade kernel-macrosUpgrade ocfs2-kmp-64kbUpgrade kselftests-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade kernel-syms-rtUpgrade dlm-kmp-defaultUpgrade dtb-rockchipUpgrade kernel-docsUpgrade cluster-md-kmp-azureUpgrade kernel-docs-htmlUpgrade dtb-amlogicUpgrade kernel-rt_debugUpgrade kernel-kvmsmallUpgrade kernel-obs-qaUpgrade dtb-caviumUpgrade kernel-64kbUpgrade dtb-armUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-azure-optionalUpgrade gfs2-kmp-defaultUpgrade kernel-devel-rtUpgrade kernel-64kb-extraUpgrade dtb-hisiliconUpgrade ocfs2-kmp-azureUpgrade dtb-nvidiaUpgrade dtb-alteraUpgrade kernel-rt_debug-develUpgrade dtb-lgUpgrade cluster-md-kmp-rtUpgrade kernel-symsUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-develUpgrade kernel-debug-develUpgrade dtb-renesasUpgrade dtb-amdUpgrade dtb-sprdUpgrade kernel-azureUpgrade kernel-64kb-livepatch-develUpgrade kernel-debug-vdsoUpgrade cluster-md-kmp-64kbUpgrade kernel-64kb-optionalUpgrade ocfs2-kmp-defaultUpgrade kernel-default-develUpgrade dtb-xilinxUpgrade dtb-amazonUpgrade kernel-source-vanillaUpgrade reiserfs-kmp-azureUpgrade kernel-default-optionalUpgrade dlm-kmp-rtUpgrade dlm-kmp-64kbUpgrade kernel-default-vdsoUpgrade kselftests-kmp-64kbUpgrade kernel-rt-livepatchUpgrade gfs2-kmp-64kbUpgrade dtb-mediatekUpgrade reiserfs-kmp-defaultUpgrade kernel-rt-develUpgrade kernel-64kb-develUpgrade gfs2-kmp-azureUpgrade dtb-allwinnerUpgrade kernel-default-baseUpgrade kernel-defaultUpgrade kselftests-kmp-rtUpgrade kernel-default-livepatch-develUpgrade kernel-debug | Aug 14, 2024 | Jul 12, 2024 |
| Ubuntu | — | Upgrade linux-image-6.8.0-45-generic-64kUpgrade linux-image-oem-22.04Upgrade linux-image-oem-osp1Upgrade linux-image-oem-20.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-oem-20.04dUpgrade linux-image-gkeop-5.15Upgrade linux-image-nvidiaUpgrade linux-image-5.15.0-1035-xilinx-zynqmpUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-5.4.0-1137-azureUpgrade linux-image-5.15.0-1068-gcpUpgrade linux-image-5.4.0-1132-awsUpgrade linux-image-5.15.0-1062-ibmUpgrade linux-image-6.8.0-1012-oracle-64kUpgrade linux-image-oracleUpgrade linux-image-oem-22.04cUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-raspi-hwe-18.04Upgrade linux-image-5.4.0-1099-gkeopUpgrade linux-image-raspi2Upgrade linux-image-gkeopUpgrade linux-image-5.15.0-1066-kvmUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-azure-lts-18.04Upgrade linux-image-5.4.0-1116-raspiUpgrade linux-image-4.4.0-262-lowlatencyUpgrade linux-image-intelUpgrade linux-image-aws-lts-18.04Upgrade linux-image-6.8.0-1012-ibmUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-4.4.0-1177-awsUpgrade linux-image-oem-20.04bUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-gcp-lts-18.04Upgrade linux-image-gkeUpgrade linux-image-intel-iotgUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-generic-lts-xenialUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-aws-lts-22.04Upgrade linux-image-aws-hweUpgrade linux-image-azure-cvmUpgrade linux-image-6.8.0-1014-gcpUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.4.0-1043-iotUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-gke-5.15Upgrade linux-image-4.15.0-232-lowlatencyUpgrade linux-image-6.8.0-1012-oemUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-44-lowlatencyUpgrade linux-image-oem-22.04dUpgrade linux-image-5.15.0-1064-intel-iotgUpgrade linux-image-oem-22.04aUpgrade linux-image-5.4.0-1051-xilinx-zynqmpUpgrade linux-image-5.15.0-1064-nvidia-lowlatencyUpgrade linux-image-aws-lts-20.04Upgrade linux-image-gcp-lts-20.04Upgrade linux-image-6.8.0-1013-nvidia-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1015-awsUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-4.4.0-1139-awsUpgrade linux-image-5.15.0-1052-gkeopUpgrade linux-image-6.8.0-1013-nvidiaUpgrade linux-image-6.8.0-1013-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1072-azureUpgrade linux-image-5.15.0-121-genericUpgrade linux-image-gkeop-5.4Upgrade linux-image-6.8.0-1014-azureUpgrade linux-image-oem-20.04cUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-6.8.0-1011-raspiUpgrade linux-image-virtualUpgrade linux-image-5.4.0-195-generic-lpaeUpgrade linux-image-azure-lts-20.04Upgrade linux-image-virtual-hwe-18.04Upgrade linux-image-5.4.0-1136-gcpUpgrade linux-image-genericUpgrade linux-image-4.4.0-262-genericUpgrade linux-image-5.15.0-121-generic-64kUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-22.04bUpgrade linux-image-5.4.0-195-genericUpgrade linux-image-gcpUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-4.4.0-1140-kvmUpgrade linux-image-bluefieldUpgrade linux-image-4.15.0-1176-awsUpgrade linux-image-oracle-64kUpgrade linux-image-4.15.0-1184-azureUpgrade linux-image-5.15.0-121-generic-lpaeUpgrade linux-image-5.15.0-1062-raspiUpgrade linux-image-6.8.0-44-lowlatency-64kUpgrade linux-image-generic-64k | Sep 12, 2024 | Jul 12, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2025 | Jul 12, 2024 |
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