Description
In the Linux kernel, the following vulnerability has been resolved: ext4: set goal start correctly in ext4_mb_normalize_request We need to set ac_g_ex to notify the goal start used in ext4_mb_find_by_goal. Set ac_g_ex instead of ac_f_ex in ext4_mb_normalize_request. Besides we should assure goal start is in range [first_data_block, blocks_count) as ext4_mb_initialize_context does. [ Added a check to make sure size is less than ar->pright; otherwise we could end up passing an underflowed value of ar->pright - size to ext4_get_group_no_and_offset(), which will trigger a BUG_ON later on. - TYT ]
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
c9de560ded61faa5b754137b7753da252391c55a to < 2479bb6cbdb4d56b807bbe5229e3e26a6f1f4530affectedc9de560ded61faa5b754137b7753da252391c55a to < 390eee955d4de4662db5e3e9e9a9eae020432cb7affectedc9de560ded61faa5b754137b7753da252391c55a to < cee78217a7ae72d11c2e21e1a5263b8044489823affectedc9de560ded61faa5b754137b7753da252391c55a to < 3ca3005b502ca8ea87d6a344323b179b48c4e4a3affectedc9de560ded61faa5b754137b7753da252391c55a to < bc4a3e1d07a86ae5845321d371190244acacb2f2affectedc9de560ded61faa5b754137b7753da252391c55a to < c6bee8970075b256fc1b07bf4873049219380818affectedc9de560ded61faa5b754137b7753da252391c55a to < abb330ffaa3a0ae7ce632e28c9260b461c01f19faffectedc9de560ded61faa5b754137b7753da252391c55a to < b07ffe6927c75d99af534d685282ea188d9f71a6affected
Linux Linux
Default version status: affected
2.6.25affected0 to < 2.6.25unaffected4.14.316 to ≤ 4.14.*unaffected4.19.284 to ≤ 4.19.*unaffected5.4.244 to ≤ 5.4.*unaffected5.10.181 to ≤ 5.10.*unaffected5.15.113 to ≤ 5.15.*unaffected6.1.30 to ≤ 6.1.*unaffected6.3.4 to ≤ 6.3.*unaffected6.4 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/2479bb6cbdb4d56b807bbe5229e3e26a6f1f4530 ↗
- https://git.kernel.org/stable/c/390eee955d4de4662db5e3e9e9a9eae020432cb7 ↗
- https://git.kernel.org/stable/c/cee78217a7ae72d11c2e21e1a5263b8044489823 ↗
- https://git.kernel.org/stable/c/3ca3005b502ca8ea87d6a344323b179b48c4e4a3 ↗
- https://git.kernel.org/stable/c/bc4a3e1d07a86ae5845321d371190244acacb2f2 ↗
- https://git.kernel.org/stable/c/c6bee8970075b256fc1b07bf4873049219380818 ↗
- https://git.kernel.org/stable/c/abb330ffaa3a0ae7ce632e28c9260b461c01f19f ↗
- https://git.kernel.org/stable/c/b07ffe6927c75d99af534d685282ea188d9f71a6 ↗