In the Linux kernel, the following vulnerability has been resolved:
cfg80211: fix race in netlink owner interface destruction
My previous fix here to fix the deadlock left a race where
the exact same deadlock (see the original commit referenced
below) can still happen if cfg80211_destroy_ifaces() already
runs while nl80211_netlink_notify() is still marking some
interfaces as nl_owner_dead.
The race happens because we have two loops here - first we
dev_close() all the netdevs, and then we destroy them. If we
also have two netdevs (first one need only be a wdev though)
then we can find one during the first iteration, close it,
and go to the second iteration -- but then find two, and try
to destroy also the one we didn't close yet.
Fix this by only iterating once.
References
Configurations
Configuration 1 (hide)
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History
03 Feb 2025, 15:43
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:* |
|
| References | () https://git.kernel.org/stable/c/241e633cb379c4f332fc1baf2abec95ec840cbeb - Patch | |
| References | () https://git.kernel.org/stable/c/c979f792a2baf6d0f3419587668a1a6eba46a3d2 - Patch | |
| References | () https://git.kernel.org/stable/c/f0a6fd1527067da537e9c48390237488719948ed - Patch | |
| CWE | CWE-362 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.7 |
| First Time |
Linux linux Kernel
Linux |
Information
Published : 2024-07-16 12:15
Updated : 2025-02-03 15:43
NVD link : CVE-2022-48784
Mitre link : CVE-2022-48784
CVE.ORG link : CVE-2022-48784
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')