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PUBLISHED

CVE-2024-36923

fs/9p: fix uninitialized values during inode evict

Reserved:2024-05-30
Published:2024-05-30
Updated:2024-06-06

Description

In the Linux kernel, the following vulnerability has been resolved: fs/9p: fix uninitialized values during inode evict If an iget fails due to not being able to retrieve information from the server then the inode structure is only partially initialized. When the inode gets evicted, references to uninitialized structures (like fscache cookies) were being made. This patch checks for a bad_inode before doing anything other than clearing the inode from the cache. Since the inode is bad, it shouldn't have any state associated with it that needs to be written back (and there really isn't a way to complete those anyways).

Product status

Default status
unaffected

1da177e4c3f4 before 1b4cb6e91f19
affected

1da177e4c3f4 before 6630036b7c22
affected

Default status
affected

6.8.10
unaffected

6.9
unaffected

References

https://git.kernel.org/stable/c/1b4cb6e91f19b81217ad98142ee53a1ab25893fd

https://git.kernel.org/stable/c/6630036b7c228f57c7893ee0403e92c2db2cd21d

cve.org CVE-2024-36923

nvd.nist.gov CVE-2024-36923

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