Ubuntu.comUB:CVE-2023-52774CVE-2023-52774
In the Linux kernel, the following vulnerability has been resolved:
s390/dasd: protect device queue against concurrent access In
dasd_profile_start() the amount of requests on the device queue are
counted. The access to the device queue is unprotected against concurrent
access. With a lot of parallel I/O, especially with alias devices enabled,
the device queue can change while dasd_profile_start() is accessing the
queue. In the worst case this leads to a kernel panic due to incorrect
pointer accesses. Fix this by taking the device lock before accessing the
queue and counting the requests. Additionally the check for a valid profile
data pointer can be done earlier to avoid unnecessary locking in a hot
path.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws-5.15 | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws-5.4 | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure-5.15 | < any | UNKNOWN |
References
git.kernel.org/linus/db46cd1e0426f52999d50fa72cfa97fa39952885 (6.7-rc3)
git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250
git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240
git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7a
git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885
git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0be
git.kernel.org/stable/c/ebdc569a07a3e8dbe66b4184922ad6f88ac0b96f
git.kernel.org/stable/c/f1ac7789406e2ca9ac51c41ad2daa597f47bdd4d
git.kernel.org/stable/c/f75617cc8df4155374132f0b500b0b3ebb967458
launchpad.net/bugs/cve/CVE-2023-52774
nvd.nist.gov/vuln/detail/CVE-2023-52774
security-tracker.debian.org/tracker/CVE-2023-52774
www.cve.org/CVERecord?id=CVE-2023-52774
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