Description
In the Linux kernel, the following vulnerability has been resolved: ubifs: Free memory for tmpfile name When opening a ubifs tmpfile on an encrypted directory, function fscrypt_setup_filename allocates memory for the name that is to be stored in the directory entry, but after the name has been copied to the directory entry inode, the memory is not freed. When running kmemleak on it we see that it is registered as a leak. The report below is triggered by a simple program 'tmpfile' just opening a tmpfile: unreferenced object 0xffff88810178f380 (size 32): comm "tmpfile", pid 509, jiffies 4294934744 (age 1524.742s) backtrace: __kmem_cache_alloc_node __kmalloc fscrypt_setup_filename ubifs_tmpfile vfs_tmpfile path_openat Free this memory after it has been copied to the inode.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f4f61d2cc6d8789a52245a4733b3e5643be154f3 to < 8ad8c67a897e68426e85990ebfe0a7d1f71fc79faffectedf4f61d2cc6d8789a52245a4733b3e5643be154f3 to < 107d481642c356a5668058066360fc473911e628affectedf4f61d2cc6d8789a52245a4733b3e5643be154f3 to < 823f554747f8aafaa965fb2f3ae794110ed429efaffectedf4f61d2cc6d8789a52245a4733b3e5643be154f3 to < b8f444a4fadfb5070ed7e298e0a5ceb4a18014f3affectedf4f61d2cc6d8789a52245a4733b3e5643be154f3 to < ce840284929b75dbbf062e0ce7fcb78a63b08b5eaffectedf4f61d2cc6d8789a52245a4733b3e5643be154f3 to < 29738e1bcc799dd754711d4e4aab967f0c018175affectedf4f61d2cc6d8789a52245a4733b3e5643be154f3 to < fd197308c0e4f738c7ea687d5332035c5753881caffectedf4f61d2cc6d8789a52245a4733b3e5643be154f3 to < 1e43d4284bdc3bd34bd770fea13910ac37ab0618affectedf4f61d2cc6d8789a52245a4733b3e5643be154f3 to < 1fb815b38bb31d6af9bd0540b8652a0d6fe6cfd3affected
Linux Linux
Default version status: affected
4.10affected0 to < 4.10unaffected4.14.315 to ≤ 4.14.*unaffected4.19.283 to ≤ 4.19.*unaffected5.4.243 to ≤ 5.4.*unaffected5.10.180 to ≤ 5.10.*unaffected5.15.111 to ≤ 5.15.*unaffected6.1.28 to ≤ 6.1.*unaffected6.2.15 to ≤ 6.2.*unaffected6.3.2 to ≤ 6.3.*unaffected6.4 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/8ad8c67a897e68426e85990ebfe0a7d1f71fc79f ↗
- https://git.kernel.org/stable/c/107d481642c356a5668058066360fc473911e628 ↗
- https://git.kernel.org/stable/c/823f554747f8aafaa965fb2f3ae794110ed429ef ↗
- https://git.kernel.org/stable/c/b8f444a4fadfb5070ed7e298e0a5ceb4a18014f3 ↗
- https://git.kernel.org/stable/c/ce840284929b75dbbf062e0ce7fcb78a63b08b5e ↗
- https://git.kernel.org/stable/c/29738e1bcc799dd754711d4e4aab967f0c018175 ↗
- https://git.kernel.org/stable/c/fd197308c0e4f738c7ea687d5332035c5753881c ↗
- https://git.kernel.org/stable/c/1e43d4284bdc3bd34bd770fea13910ac37ab0618 ↗
- https://git.kernel.org/stable/c/1fb815b38bb31d6af9bd0540b8652a0d6fe6cfd3 ↗