linux: In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Fix use-after-free bug for mm struct...
CVE-2022-49076 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49076, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Fix use-after-free bug for mm struct Under certain conditions, such as MPI_Abort, the hfi1 cleanup code may represent the last reference held on the task mm. hfi1_mmu_rb_unregister() then drops the last reference and the mm is freed before the final use in hfi1_release_user_pages(). A new task may allocate the mm structure while it is still being used, resulting in problems. One manifestation is corruption of the mmap_sem counter leading to a hang in down_write(). Another is corruption of an mm struct that is in use by another task.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.17.3-1 | DEBIAN-CVE-2022-49076 | Feb 26, 2025 |
| linux · Debian 13.5 (trixie) | 5.17.3-1 | DEBIAN-CVE-2022-49076 | Feb 26, 2025 |
| linux · Debian 14 | 5.17.3-1 | DEBIAN-CVE-2022-49076 | Feb 26, 2025 |
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