cbcvebase.
CVE-2024-49937
published 2024-10-21

CVE-2024-49937: In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Set correct chandef when starting CAC When starting CAC in a mode other…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
14.6th percentile
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Set correct chandef when starting CAC When starting CAC in a mode other than AP mode, it return a "WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]" caused by the chandef.chan being null at the end of CAC. Solution: Ensure the channel definition is set for the different modes when starting CAC to avoid getting a NULL 'chan' at the end of CAC. Call Trace: ? show_regs.part.0+0x14/0x16 ? __warn+0x67/0xc0 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? report_bug+0xa7/0x130 ? exc_overflow+0x30/0x30 ? handle_bug+0x27/0x50 ? exc_invalid_op+0x18/0x60 ? handle_exception+0xf6/0xf6 ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211] ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211] ? process_one_work+0x165/0x280 ? worker_thread+0x120/0x3f0 ? kthread+0xc2/0xf0 ? process_one_work+0x280/0x280 ? kthread_complete_and_exit+0x20/0x20 ? ret_from_fork+0x19/0x24 [shorten subject, remove OCB, reorder cases to match previous list]

Affected

22 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
debianlinux-6.1< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux>= 5.19.2 < 5.205.20
linuxlinux>= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < 95f32191e50b75e0f75fae1bb925cdf51d8df0a395f32191e50b75e0f75fae1bb925cdf51d8df0a3
linuxlinux>= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < 04053e55dd50741cf6c59b9bbaa4238218c05c7004053e55dd50741cf6c59b9bbaa4238218c05c70
linuxlinux>= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < f4dbfda159e43d49b43003cc3c2914751939035ff4dbfda159e43d49b43003cc3c2914751939035f
linuxlinux>= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < c628026563f4ea9e0413dd4b69429e4a1db240b1c628026563f4ea9e0413dd4b69429e4a1db240b1
linuxlinux>= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < 20361712880396e44ce80aaeec2d93d18203565120361712880396e44ce80aaeec2d93d182035651
linuxlinux_kernel< 6.1.1136.1.113
linuxlinux_kernel>= 0 < 6.1.115-16.1.115-1
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 6.8.0-54.566.8.0-54.56
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 6.11 < 6.11.36.11.3
linuxlinux_kernel>= 6.2 < 6.6.556.6.55
linuxlinux_kernel>= 6.7 < 6.10.146.10.14
msrccbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.202.1-1_on_cbl_mariner_2.0

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_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.