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THREATINT
PUBLISHED

CVE-2024-50087

btrfs: fix uninitialized pointer free on read_alloc_one_name() error



AssignerLinux
Reserved2024-10-21
Published2024-10-29
Updated2024-11-05

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix uninitialized pointer free on read_alloc_one_name() error The function read_alloc_one_name() does not initialize the name field of the passed fscrypt_str struct if kmalloc fails to allocate the corresponding buffer. Thus, it is not guaranteed that fscrypt_str.name is initialized when freeing it. This is a follow-up to the linked patch that fixes the remaining instances of the bug introduced by commit e43eec81c516 ("btrfs: use struct qstr instead of name and namelen pairs").

Product status

Default status
unaffected

1cf474cd474b before b37de9491f14
affected

e43eec81c516 before 7fc7c47b9ba0
affected

e43eec81c516 before 1ec28de5e476
affected

e43eec81c516 before 2ab5e243c226
affected

Default status
affected

6.2
affected

Any version before 6.2
unaffected

6.1.114
unaffected

6.6.58
unaffected

6.11.5
unaffected

6.12-rc4
unaffected

References

https://git.kernel.org/stable/c/b37de9491f140a0ff125c27dd1050185c3accbc1

https://git.kernel.org/stable/c/7fc7c47b9ba0cf2d192f2117a64b24881b0b577f

https://git.kernel.org/stable/c/1ec28de5e476913ae51f909660b4447eddb28838

https://git.kernel.org/stable/c/2ab5e243c2266c841e0f6904fad1514b18eaf510

cve.org CVE-2024-50087

nvd.nist.gov CVE-2024-50087

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