CVE-2025-38411
Description
In the Linux kernel, the following vulnerability has been resolved:
netfs: Fix double put of request
If a netfs request finishes during the pause loop, it will have the ref that belongs to the IN_PROGRESS flag removed at that point - however, if it then goes to the final wait loop, that will *also* put the ref because it sees that the IN_PROGRESS flag is clear and incorrectly assumes that this happened when it called the collector.
In fact, since IN_PROGRESS is clear, we shouldn't call the collector again since it's done all the cleanup, such as calling ->ki_complete().
Fix this by making netfs_collect_in_app() just return, indicating that we're done if IN_PROGRESS is removed.
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Affected products
8cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.15.3,<6.15.6
- cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: 6.15.3
Patches
Vulnerability mechanics
References
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