CVE-2022-49388
ubi: ubi_create_volume: Fix use-after-free when volume creation failed
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: ubi: ubi_create_volume: Fix use-after-free when volume creation failed There is an use-after-free problem for 'eba_tbl' in ubi_create_volume()'s error handling path: ubi_eba_replace_table(vol, eba_tbl) vol->eba_tbl = tbl out_mapping: ubi_eba_destroy_table(eba_tbl) // Free 'eba_tbl' out_unlock: put_device(&vol->dev) vol_release kfree(tbl->entries) // UAF Fix it by removing redundant 'eba_tbl' releasing. Fetch a reproducer in [Link].
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.12
References 8
git.kernel.org
- stable/c/25ff1e3a1351c0d936dd1ac2f9e58231ea1510c9
- stable/c/abb67043060f2bf4c03d7c3debb9ae980e2b6db3
- stable/c/8302620aeb940f386817321d272b12411ae7d39f
- stable/c/6d8d3f68cbecfd31925796f0fb668eb21ab06734
- stable/c/5ff2514e4fb55dcf3d88294686040ca73ea0c1a2
- stable/c/e27ecf325e51abd06aaefba57a6322a46fa4178b
- stable/c/1174ab8ba36a48025b68b5ff1085000b1e510217
- stable/c/8c03a1c21d72210f81cb369cc528e3fde4b45411