Description

In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: Lock wiphy in cfg80211_get_station

Wiphy should be locked before calling rdev_get_station() (see lockdep
assert in ieee80211_get_station()).

This fixes the following kernel NULL dereference:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x06: level 2 translation fault
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000003001000
[0000000000000050] pgd=0800000002dca003, p4d=0800000002dca003, pud=08000000028e9003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] SMP
Modules linked in: netconsole dwc3_meson_g12a dwc3_of_simple dwc3 ip_gre gre ath10k_pci ath10k_core ath9k ath9k_common ath9k_hw ath
CPU: 0 PID: 1091 Comm: kworker/u8:0 Not tainted 6.4.0-02144-g565f9a3a7911-dirty #705
Hardware name: RPT (r1) (DT)
Workqueue: bat_events batadv_v_elp_throughput_metric_update
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : ath10k_sta_statistics+0x10/0x2dc [ath10k_core]
lr : sta_set_sinfo+0xcc/0xbd4
sp : ffff000007b43ad0
x29: ffff000007b43ad0 x28: ffff0000071fa900 x27: ffff00000294ca98
x26: ffff000006830880 x25: ffff000006830880 x24: ffff00000294c000
x23: 0000000000000001 x22: ffff000007b43c90 x21: ffff80000889...

Classification

CVE ID: CVE-2024-40911

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.08% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/dfd84ce41663be9ca3f69bd657c45f49b69344d9
https://git.kernel.org/stable/c/6d540b0317901535275020bd4ac44fac6439ca76
https://git.kernel.org/stable/c/0ccc63958d8373e15a69f4f8069f3e78f7f3898a
https://git.kernel.org/stable/c/43e1eefb0b2094e2281150d87d09e8bc872b9fba
https://git.kernel.org/stable/c/642f89daa34567d02f312d03e41523a894906dae

Timeline