CVE-2022-49416
linux: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix use-after-free in chanctx co...
CVE-2022-49416 is fixed in 47 products on 1 platform, first by RHSA-2023:2458, released May 9, 2023. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0034
27th percentile
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix use-after-free in chanctx code In ieee80211_vif_use_reserved_context(), when we have an old context and the new context's replace_state is set to IEEE80211_CHANCTX_REPLACE_NONE, we free the old context in ieee80211_vif_use_reserved_reassign(). Therefore, we cannot check the old_ctx anymore, so we should set it to NULL after this point. However, since the new_ctx replace state is clearly not IEEE80211_CHANCTX_REPLACES_OTHER, we're not going to do anything else in this function and can just return to avoid accessing the freed old_ctx.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| bpftool · RHEL 9 | 0:7.0.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-debug · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-debug-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-debug-devel · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-debug-devel-matched · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-debug-modules · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-debug-modules-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-debug-modules-extra · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-devel · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-devel-matched · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-modules · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-modules-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-64k-modules-extra · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-abi-stablelists · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-abi-stablelists · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-core · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-debug · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-debug · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-debug-core · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-debug-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-debug-devel · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-debug-devel · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-debug-devel-matched · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-debug-modules · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-debug-modules · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-debug-modules-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-debug-modules-extra · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-debug-modules-extra · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-debug-uki-virt · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-devel · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-devel · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-devel-matched · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-doc · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-doc · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-modules · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-modules · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-modules-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-modules-extra · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-modules-extra · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-tools · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-tools · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-tools-libs · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-tools-libs · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-tools-libs-devel · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-tools-libs-devel · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-uki-virt · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-zfcpdump · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-zfcpdump · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-zfcpdump-core · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-zfcpdump-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-zfcpdump-devel · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-zfcpdump-devel · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-zfcpdump-devel-matched · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-zfcpdump-modules · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-zfcpdump-modules · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-zfcpdump-modules-core · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| kernel-zfcpdump-modules-extra · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| kernel-zfcpdump-modules-extra · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| linux · Debian 12.15 (bookworm) | 5.18.5-1 | DEBIAN-CVE-2022-49416 | Feb 26, 2025 |
| linux · Debian 13.5 (trixie) | 5.18.5-1 | DEBIAN-CVE-2022-49416 | Feb 26, 2025 |
| linux · Debian 14 | 5.18.5-1 | DEBIAN-CVE-2022-49416 | Feb 26, 2025 |
| perf · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| perf · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| python3-perf · RHEL 8 | 0:4.18.0-477.10.1.el8_8 | RHSA-2023:2951 | May 16, 2023 |
| python3-perf · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
| rtla · RHEL 9 | 0:5.14.0-284.11.1.el9_2 | RHSA-2023:2458 | May 9, 2023 |
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