CVE-2024-38663: blk-cgroup: fix list corruption from resetting io stat
First published: Mon Jun 24 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from resetting io stat Since commit 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()"), each iostat instance is added to blkcg percpu list, so blkcg_reset_stats() can't reset the stat instance by memset(), otherwise the llist may be corrupted. Fix the issue by only resetting the counter part.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.6.33 | 6.6.33 |
| redhat/kernel | <6.9.4 | 6.9.4 |
| redhat/kernel | <6.10 | 6.10 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- https://git.kernel.org/stable/c/6da6680632792709cecf2b006f2fe3ca7857e791
- https://git.kernel.org/stable/c/89bb36c72e1951843f9e04dc84412e31fcc849a9
- https://git.kernel.org/stable/c/d4a60298ac34f027a09f8f893fdbd9e06279bb24
- https://access.redhat.com/security/cve/CVE-2024-38663
- https://lore.kernel.org/linux-cve-announce/2024062457-CVE-2024-38663-a1bc@gregkh/T
- https://access.redhat.com/errata/RHSA-2024:4583
- https://access.redhat.com/errata/RHSA-2024:5067
- https://access.redhat.com/errata/RHSA-2024:5066
- https://bugzilla.redhat.com/show_bug.cgi?id=2294225
- https://launchpad.net/bugs/cve/CVE-2024-38663
- https://git.kernel.org/linus/6da6680632792709cecf2b006f2fe3ca7857e791
- https://security-tracker.debian.org/tracker/CVE-2024-38663
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38663
- https://nvd.nist.gov/vuln/detail/CVE-2024-38663
- https://ubuntu.com/security/CVE-2024-38663
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