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CVE-2022-42721 · cross-distro fix matrix

CVE-2022-42721: A list management bug in 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 corrupt a linked list and, in turn, potentially execute code.

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

Fix per ecosystem

Each block below is a distro release where CVE-2022-42721 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-2022-42721?

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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