CVE-2023-52600 Information

Description

In the Linux kernel the following vulnerability has been resolved:

jfs: fix uaf in jfs_evict_inode

When the execution of diMount(ipimap) fails the object ipimap that has been released may be accessed in diFreeSpecial(). Asynchronous ipimap release occurs when rcu_core() calls jfs_free_node().

Therefore when diMount(ipimap) fails sbi->ipimap should not be initialized as ipimap.

Reference

https://git.kernel.org/stable/c/81b4249ef37297fb17ba102a524039a05c6c5d35 https://git.kernel.org/stable/c/93df0a2a0b3cde2d7ab3a52ed46ea1d6d4aaba5f https://git.kernel.org/stable/c/bc6ef64dbe71136f327d63b2b9071b828af2c2a8 https://git.kernel.org/stable/c/8e44dc3f96e903815dab1d74fff8faafdc6feb61 https://git.kernel.org/stable/c/32e8f2d95528d45828c613417cb2827d866cbdce https://git.kernel.org/stable/c/1696d6d7d4a1b373e96428d0fe1166bd7c3c795e https://git.kernel.org/stable/c/bacdaa04251382d7efd4f09f9a0686bfcc297e2e https://git.kernel.org/stable/c/e0e1958f4c365e380b17ccb35617345b31ef7bf3