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.

Classification

CVE ID: CVE-2023-52600

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.06% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

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

Timeline