Name | CVE-2021-28951 |
Description | An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25. |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
linux (PTS) | stretch | 4.9.228-1 | fixed |
stretch (security) | 4.9.303-1 | fixed | |
buster | 4.19.235-1 | fixed | |
buster (security) | 4.19.232-1 | fixed | |
bullseye | 5.10.106-1 | fixed | |
bullseye (security) | 5.10.113-1 | fixed | |
bookworm | 5.17.3-1 | fixed | |
sid | 5.17.6-1 | fixed |
The information below is based on the following data on fixed versions.
Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
---|---|---|---|---|---|---|
linux | source | stretch | (not affected) | |||
linux | source | buster | (not affected) | |||
linux | source | (unstable) | 5.10.26-1 |
[buster] - linux <not-affected> (Vulnerable code introduced later)
[stretch] - linux <not-affected> (Vulnerable code introduced later)
https://git.kernel.org/linus/3ebba796fa251d042be42b929a2d916ee5c34a49