CVE-2024-49937 Affecting kernel-debug-core package, versions *
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUGCORE-8285620
- published 23 Oct 2024
- disclosed 21 Oct 2024
Introduced: 21 Oct 2024
CVE-2024-49937 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:8 kernel-debug-core.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-core package and not the kernel-debug-core package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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]
References
- https://access.redhat.com/security/cve/CVE-2024-49937
- https://git.kernel.org/stable/c/04053e55dd50741cf6c59b9bbaa4238218c05c70
- https://git.kernel.org/stable/c/20361712880396e44ce80aaeec2d93d182035651
- https://git.kernel.org/stable/c/95f32191e50b75e0f75fae1bb925cdf51d8df0a3
- https://git.kernel.org/stable/c/c628026563f4ea9e0413dd4b69429e4a1db240b1
- https://git.kernel.org/stable/c/f4dbfda159e43d49b43003cc3c2914751939035f