5.5
CVE-2025-21694
- EPSS 0.24%
- Veröffentlicht 12.02.2025 14:15:32
- Zuletzt bearbeitet 12.05.2026 13:16:32
- Erkennungen
fs/proc: fix softlockup in __read_vmcore (part 2)
In the Linux kernel, the following vulnerability has been resolved:
fs/proc: fix softlockup in __read_vmcore (part 2)
Since commit 5cbcb62dddf5 ("fs/proc: fix softlockup in __read_vmcore") the
number of softlockups in __read_vmcore at kdump time have gone down, but
they still happen sometimes.
In a memory constrained environment like the kdump image, a softlockup is
not just a harmless message, but it can interfere with things like RCU
freeing memory, causing the crashdump to get stuck.
The second loop in __read_vmcore has a lot more opportunities for natural
sleep points, like scheduling out while waiting for a data write to
happen, but apparently that is not always enough.
Add a cond_resched() to the second loop in __read_vmcore to (hopefully)
get rid of the softlockups.Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.19.317 < 4.20
Linux ≫ Linux Kernel Version >= 5.4.279 < 5.4.290
Linux ≫ Linux Kernel Version >= 5.10.221 < 5.10.234
Linux ≫ Linux Kernel Version >= 5.15.162 < 5.15.177
Linux ≫ Linux Kernel Version >= 6.1.95 < 6.1.127
Linux ≫ Linux Kernel Version >= 6.6.35 < 6.6.74
Linux ≫ Linux Kernel Version >= 6.9.6 < 6.12.11
Linux ≫ Linux Kernel Version 6.13 Update rc1
Linux ≫ Linux Kernel Version 6.13 Update rc2
Linux ≫ Linux Kernel Version 6.13 Update rc3
Linux ≫ Linux Kernel Version 6.13 Update rc4
Linux ≫ Linux Kernel Version 6.13 Update rc5
Linux ≫ Linux Kernel Version 6.13 Update rc6
Linux ≫ Linux Kernel Version 6.13 Update rc7
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Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.24% | 0.149 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 5.5 | 1.8 | 3.6 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
|
| CISA-ADP | 5.5 | 1.8 | 3.6 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
|
https://git.kernel.org/stable/c/649b266606bc413407ce315f710c8ce8a88ee30a
https://git.kernel.org/stable/c/65c367bd9d4f43513c7f837df5753bea9561b836
https://git.kernel.org/stable/c/80828540dad0757b6337c6561d49c81038f38d87
https://git.kernel.org/stable/c/80da29deb88a3a907441fc35bb7bac309f31e713
https://git.kernel.org/stable/c/84c4ed15626574c9ac6c1039ba9c137a77bcc7f2
https://git.kernel.org/stable/c/a5a2ee8144c3897d37403a69118c3e3dc5713958
https://git.kernel.org/stable/c/cbc5dde0a461240046e8a41c43d7c3b76d5db952
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
https://cert-portal.siemens.com/productcert/html/ssa-355557.html