cbcvebase.
CVE-2024-40912
published 2024-07-12

CVE-2024-40912: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix deadlock in ieee80211_sta_ps_deliver_wakeup() The…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
13.2th percentile
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+0x1

Affected

38 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
debianlinux-6.1< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux
linuxlinux
linuxlinux
linuxlinux
linuxlinux>= 1d147bfa64293b2723c4fec50922168658e613ba < e51637e0c66a6f72d134d9f95daa47ea62b43c7ee51637e0c66a6f72d134d9f95daa47ea62b43c7e
linuxlinux>= 1d147bfa64293b2723c4fec50922168658e613ba < 28ba44d680a30c51cf485a2f5a3b680e66ed393228ba44d680a30c51cf485a2f5a3b680e66ed3932
linuxlinux>= 1d147bfa64293b2723c4fec50922168658e613ba < e7e916d693dcb5a297f40312600a82475f2e63bce7e916d693dcb5a297f40312600a82475f2e63bc
linuxlinux>= 1d147bfa64293b2723c4fec50922168658e613ba < d90bdff79f8e40adf889b5408bfcf521528b169fd90bdff79f8e40adf889b5408bfcf521528b169f
linuxlinux>= 1d147bfa64293b2723c4fec50922168658e613ba < 9c49b58b9a2bed707e7638576e54c4bccd97b9eb9c49b58b9a2bed707e7638576e54c4bccd97b9eb
linuxlinux>= 1d147bfa64293b2723c4fec50922168658e613ba < 456bbb8a31e425177dc0e8d4f98728a560c20e81456bbb8a31e425177dc0e8d4f98728a560c20e81
linuxlinux>= 1d147bfa64293b2723c4fec50922168658e613ba < 47d176755d5c0baf284eff039560f8c1ba0ea48547d176755d5c0baf284eff039560f8c1ba0ea485
linuxlinux>= 1d147bfa64293b2723c4fec50922168658e613ba < 44c06bbde6443de206b30f513100b5670b23fc5e44c06bbde6443de206b30f513100b5670b23fc5e
linuxlinux>= 3.10.34 < 3.113.11
linuxlinux>= 3.12.15 < 3.133.13
linuxlinux>= 3.13.7 < 3.143.14
linuxlinux>= 3.2.56 < 3.33.3
linuxlinux>= 3.4.84 < 3.53.5
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.221-15.10.221-1
linuxlinux_kernel>= 0 < 6.1.99-16.1.99-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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