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CVE-2021-47552 · cross-distro fix matrix

CVE-2021-47552: In the Linux kernel, the following vulnerability has been resolved: blk-mq: cancel blk-mq dispatch work in both blk_cleanup_queue and disk_release() For avoiding to slow down queue destroy, we don't call blk_mq_quiesce_queue() in blk_cleanup_queue(), instead of delaying to cancel dispatch work in

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-47552 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

  • linux→ fixed in5.15.15-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux

Debian trixie

Source: Debian Security Tracker

  • linux→ fixed in5.15.15-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux
Are YOU affected by CVE-2021-47552?

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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