CVE-2024-40912
- Source
- https://cve.org/CVERecord?id=CVE-2024-40912
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-40912.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-40912
- Downstream
- Related
- Published
- 2024-07-12T12:20:50.488Z
- Modified
- 2026-05-18T05:56:06.816102555Z
- Summary
- wifi: mac80211: Fix deadlock in ieee80211_sta_ps_deliver_wakeup()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: Fix deadlock in ieee80211stapsdeliverwakeup()
The ieee80211stapsdeliverwakeup() function takes sta->pslock to synchronizes with ieee80211txhunicastpsbuf() which is called from softirq context. However using only spinlock() to get sta->pslock in ieee80211stapsdeliverwakeup() does not prevent softirq to execute on this same CPU, to run ieee80211txhunicastps_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: rcusched 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: wpasupplicant 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 : queuedspinlockslowpath+0x58/0x2d0 lr : invoketxhandlersearly+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: queuedspinlockslowpath+0x58/0x2d0 ieee80211tx+0x80/0x12c ieee80211txpending+0x110/0x278 taskletactioncommon.constprop.0+0x10c/0x144 tasklet_action+0x20/0x28 _stext+0x11c/0x284 ____dosoftirq+0xc/0x14 callonirqstack+0x24/0x34 dosoftirqownstack+0x18/0x20 dosoftirq+0x74/0x7c __localbhenableip+0xa0/0xa4 ieee80211waketxqs+0x3b0/0x4b8 __ieee80211wakequeue+0x12c/0x168 ieee80211addpendingskbs+0xec/0x138 ieee80211stapsdeliverwakeup+0x2a4/0x480 ieee80211mpsstastatusupdate.part.0+0xd8/0x11c ieee80211mpsstastatusupdate+0x18/0x24 staapplyparameters+0x3bc/0x4c0 ieee80211changestation+0x1b8/0x2dc nl80211setstation+0x444/0x49c genlfamilyrcvmsgdoit.isra.0+0xa4/0xfc genlrcvmsg+0x1b0/0x244 netlinkrcvskb+0x38/0x10c genlrcv+0x34/0x48 netlinkunicast+0x254/0x2bc netlinksendmsg+0x190/0x3b4 ____sys_sendmsg+0x1e8/0x218 ___sys_sendmsg+0x68/0x8c __sys_sendmsg+0x44/0x84 __arm64syssendmsg+0x20/0x28 doel0svc+0x6c/0xe8 el0svc+0x14/0x48 el0t64synchandler+0xb0/0xb4 el0t64sync+0x14c/0x150
Using spinlockbh()/spinunlockbh() instead prevents softirq to raise on the same CPU that is holding the lock.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40912.json", "cna_assigner": "Linux" }- References
-
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://git.kernel.org/stable/c/28ba44d680a30c51cf485a2f5a3b680e66ed3932
- https://git.kernel.org/stable/c/44c06bbde6443de206b30f513100b5670b23fc5e
- https://git.kernel.org/stable/c/456bbb8a31e425177dc0e8d4f98728a560c20e81
- https://git.kernel.org/stable/c/47d176755d5c0baf284eff039560f8c1ba0ea485
- https://git.kernel.org/stable/c/9c49b58b9a2bed707e7638576e54c4bccd97b9eb
- https://git.kernel.org/stable/c/d90bdff79f8e40adf889b5408bfcf521528b169f
- https://git.kernel.org/stable/c/e51637e0c66a6f72d134d9f95daa47ea62b43c7e
- https://git.kernel.org/stable/c/e7e916d693dcb5a297f40312600a82475f2e63bc
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40912.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-40912
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced1d147bfa64293b2723c4fec50922168658e613baFixede51637e0c66a6f72d134d9f95daa47ea62b43c7eFixed28ba44d680a30c51cf485a2f5a3b680e66ed3932Fixede7e916d693dcb5a297f40312600a82475f2e63bcFixedd90bdff79f8e40adf889b5408bfcf521528b169fFixed9c49b58b9a2bed707e7638576e54c4bccd97b9ebFixed456bbb8a31e425177dc0e8d4f98728a560c20e81Fixed47d176755d5c0baf284eff039560f8c1ba0ea485Fixed44c06bbde6443de206b30f513100b5670b23fc5e
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affectedad64b463d919a18be70b281efb135231169caf4aLast affected46a5a5493360f995b834eb3b828eb59da4604509Last affecteda7ee1a84a81555b19ec3d02f104bfd70cf0b668aLast affected58d4310586466840dab77e56e53f4508853a5268Last affectedfcb6d3c79824d350893edfa7b50d6ba1f670c4ec
Affected versions
v2.*
v3.*
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced3.14.0Fixed4.19.317
- Type
- ECOSYSTEM
- Events
-
Introduced4.20.0Fixed5.4.279
- Type
- ECOSYSTEM
- Events
-
Introduced5.5.0Fixed5.10.221
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.162
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.95
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.35
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.9.6