7.8

CVE-2024-41074

cachefiles: Set object to close if ondemand_id < 0 in copen

In the Linux kernel, the following vulnerability has been resolved:

cachefiles: Set object to close if ondemand_id < 0 in copen

If copen is maliciously called in the user mode, it may delete the request
corresponding to the random id. And the request may have not been read yet.

Note that when the object is set to reopen, the open request will be done
with the still reopen state in above case. As a result, the request
corresponding to this object is always skipped in select_req function, so
the read request is never completed and blocks other process.

Fix this issue by simply set object to close if its id < 0 in copen.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.19 < 6.1.101
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.42
Linux ≫ Linux Kernel Version >= 6.7 < 6.9.11
Linux ≫ Linux Kernel Version6.10 Updaterc1
Linux ≫ Linux Kernel Version6.10 Updaterc2
Linux ≫ Linux Kernel Version6.10 Updaterc3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.123
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/0845c553db11c84ff53fccd59da11b6d6ece4a60
Patch
https://git.kernel.org/stable/c/4f8703fb3482f92edcfd31661857b16fec89c2c0
Patch
https://git.kernel.org/stable/c/703bea37d13e4ccdafd17ae7c4cb583752ba7663
Patch
https://git.kernel.org/stable/c/c32ee78fbc670e6f90989a45d340748e34cad333
Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html