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CVE-2022-42720 · cross-distro fix matrix

CVE-2022-42720: Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to trigger use-after-free conditions to potentially execute code.

Affects 8 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2022-42720 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • linux→ fixed in5.10.149-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux

Debian bookworm

Source: Debian Security Tracker

  • linux→ fixed in6.0.2-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux

Debian trixie

Source: Debian Security Tracker

  • linux→ fixed in6.0.2-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux

Alpine v3.20

Source: Alpine secdb

  • linux-lts→ fixed in5.15.74-r0
    apk update && apk add --upgrade linux-lts

Alpine v3.21

Source: Alpine secdb

  • linux-lts→ fixed in5.15.74-r0
    apk update && apk add --upgrade linux-lts

Alpine edge

Source: Alpine secdb

  • linux-lts→ fixed in5.15.74-r0
    apk update && apk add --upgrade linux-lts

Alpine v3.18

Source: Alpine secdb

  • linux-lts→ fixed in5.15.74-r0
    apk update && apk add --upgrade linux-lts

Alpine v3.19

Source: Alpine secdb

  • linux-lts→ fixed in5.15.74-r0
    apk update && apk add --upgrade linux-lts
Are YOU affected by CVE-2022-42720?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash
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