cbcvebase.
CVE-2024-50005
published 2024-10-21

CVE-2024-50005: In the Linux kernel, the following vulnerability has been resolved: mac802154: Fix potential RCU dereference issue in mac802154_scan_worker In the…

PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.22%
12.8th percentile
In the Linux kernel, the following vulnerability has been resolved: mac802154: Fix potential RCU dereference issue in mac802154_scan_worker In the `mac802154_scan_worker` function, the `scan_req->type` field was accessed after the RCU read-side critical section was unlocked. According to RCU usage rules, this is illegal and can lead to unpredictable behavior, such as accessing memory that has been updated or causing use-after-free issues. This possible bug was identified using a static analysis tool developed by myself, specifically designed to detect RCU-related issues. To address this, the `scan_req->type` value is now stored in a local variable `scan_req_type` while still within the RCU read-side critical section. The `scan_req_type` is then used after the RCU lock is released, ensuring that the type value is safely accessed without violating RCU rules.

Affected

18 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.11.4-1 (forky)linux 6.11.4-1 (forky)
linuxlinux
linuxlinux>= e2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8 < e676e4ea76bbe7f1156d8c326b9b6753849481c2e676e4ea76bbe7f1156d8c326b9b6753849481c2
linuxlinux>= e2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8 < 540138377b22f601f06f55ebfa3ca171dcab471a540138377b22f601f06f55ebfa3ca171dcab471a
linuxlinux>= e2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8 < d18f669461811dfe2915d5554ab2a9834f810013d18f669461811dfe2915d5554ab2a9834f810013
linuxlinux>= e2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8 < bff1709b3980bd7f80be6786f64cc9a9ee9e56dabff1709b3980bd7f80be6786f64cc9a9ee9e56da
linuxlinux_kernel
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>= 6.5 < 6.6.556.6.55
linuxlinux_kernel>= 6.7 < 6.10.146.10.14
msrcazl3_kernel_6.6.51.1-5_on_azure_linux_3.0
msrcazl3_kernel_6.6.57.1-2_on_azure_linux_3.0
msrcazure_linux_3.0_arm
msrcazure_linux_3.0_x64

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian7.8LOW
vendor_redhat7.8HIGH
vendor_msrc5.5MEDIUM
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