CVE-2022-49388
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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].
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec < 25ff1e3a1351c0d936dd1ac2f9e58231ea1510c9 | affected |
| Linux | Linux | 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec < abb67043060f2bf4c03d7c3debb9ae980e2b6db3 | affected |
| Linux | Linux | 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec < 8302620aeb940f386817321d272b12411ae7d39f | affected |
| Linux | Linux | 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec < 6d8d3f68cbecfd31925796f0fb668eb21ab06734 | affected |
| Linux | Linux | 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec < 5ff2514e4fb55dcf3d88294686040ca73ea0c1a2 | affected |
| Linux | Linux | 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec < e27ecf325e51abd06aaefba57a6322a46fa4178b | affected |
| Linux | Linux | 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec < 1174ab8ba36a48025b68b5ff1085000b1e510217 | affected |
| Linux | Linux | 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec < 8c03a1c21d72210f81cb369cc528e3fde4b45411 | affected |
| Linux | Linux | 4.12 | affected |
| Linux | Linux | 0 < 4.12 | unaffected |
| Linux | Linux | 4.14.283 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.247 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.198 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.122 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.47 <= 5.15.* | unaffected |
| Linux | Linux | 5.17.15 <= 5.17.* | unaffected |
| Linux | Linux | 5.18.4 <= 5.18.* | unaffected |
| Linux | Linux | 5.19 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://git.kernel.org/stable/c/25ff1e3a1351c0d936dd1ac2f9e58231ea1510c9
- https://git.kernel.org/stable/c/abb67043060f2bf4c03d7c3debb9ae980e2b6db3
- https://git.kernel.org/stable/c/8302620aeb940f386817321d272b12411ae7d39f
- https://git.kernel.org/stable/c/6d8d3f68cbecfd31925796f0fb668eb21ab06734
- https://git.kernel.org/stable/c/5ff2514e4fb55dcf3d88294686040ca73ea0c1a2
- https://git.kernel.org/stable/c/e27ecf325e51abd06aaefba57a6322a46fa4178b
- https://git.kernel.org/stable/c/1174ab8ba36a48025b68b5ff1085000b1e510217
- https://git.kernel.org/stable/c/8c03a1c21d72210f81cb369cc528e3fde4b45411
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