Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: eventfs: Fix use-after-free in eventfs_remove_rec() eventfs_remove_rec() recursively removes the child at the current loop position. After the recursive call returns, list_for_each_entry() advances by reading list.next from the removed child. If free_ei() drops the final reference, release_ei() reuses the list/rcu union to queue an SRCU callback. The child may be freed before that read. The eventfs_mutex serializes list updates, but it does not keep the removed child alive or prevent the SRCU callback from running. Use list_for_each_entry_safe() to save the next sibling before recursively removing the current child.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5dfb04100326f70e3b2d2872c2476ed20b804837 before b77581b25e213e83b79ce11eb30024e55ceeb3e9; affected 43aa6f97c2d03a52c1ddb86768575fc84344bdbb before f161d7861a0bfdf10af6b738b3b57636204661fb; affected 43aa6f97c2d03a52c1ddb86768575fc84344bdbb before 5635211b44969f4816e29ec4d5f8665fb39535d0; affected 43aa6f97c2d03a52c1ddb86768575fc84344bdbb before 74bb1eaf72d185a78c879eb2678ea500f82f46a8; affected 43aa6f97c2d03a52c1ddb86768575fc84344bdbb before fd73b691702170d37d66f4b0278530cea8ed419a; affected 5a43badefe0eccca0c26144c0a44b8d417ce8103; affected 6.6.18 before 6.6.152; affected 6.7.6 before 6.8 |
| Linux / Linux | affected 6.8; unaffected 0 before 6.8; unaffected 6.6.152 through 6.6.*; unaffected 6.12.104 through 6.12.*; unaffected 6.18.45 through 6.18.*; unaffected 7.1.9 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b77581b25e213e83b79ce11eb30024e55ceeb3e9
- https://git.kernel.org/stable/c/f161d7861a0bfdf10af6b738b3b57636204661fb
- https://git.kernel.org/stable/c/5635211b44969f4816e29ec4d5f8665fb39535d0
- https://git.kernel.org/stable/c/74bb1eaf72d185a78c879eb2678ea500f82f46a8
- https://git.kernel.org/stable/c/fd73b691702170d37d66f4b0278530cea8ed419a