CVE-2024-26708: mptcp: really cope with fastopen race
First published: Wed Apr 03 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: mptcp: really cope with fastopen race Fastopen and PM-trigger subflow shutdown can race, as reported by syzkaller. In my first attempt to close such race, I missed the fact that the subflow status can change again before the subflow_state_change callback is invoked. Address the issue additionally copying with all the states directly reachable from TCP_FIN_WAIT1.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.6.18 | 6.6.18 |
| redhat/kernel | <6.7.6 | 6.7.6 |
| redhat/kernel | <6.8 | 6.8 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
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Reference Links
- https://git.kernel.org/stable/c/337cebbd850f94147cee05252778f8f78b8c337f
- https://git.kernel.org/stable/c/4bfe217e075d04e63c092df9d40c608e598c2ef2
- https://git.kernel.org/stable/c/e158fb9679d15a2317ec13b4f6301bd26265df2f
- https://launchpad.net/bugs/cve/CVE-2024-26708
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26708
- https://nvd.nist.gov/vuln/detail/CVE-2024-26708
- https://security-tracker.debian.org/tracker/CVE-2024-26708
- https://ubuntu.com/security/CVE-2024-26708
- https://git.kernel.org/linus/337cebbd850f94147cee05252778f8f78b8c337f
- https://access.redhat.com/security/cve/CVE-2024-26708
- https://lore.kernel.org/linux-cve-announce/2024040341-CVE-2024-26708-c98a@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2273167
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2273166
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