CVE-2022-49076
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
RDMA/hfi1: Fix use-after-free bug for mm struct
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3d2a9d642512c21a12d19b9250e7a835dcb41a79 | affected | git | 5f54364ff6cfcd14cddf5441c4a490bb28dd69f7 | Unavailable | None listed |
| 3d2a9d642512c21a12d19b9250e7a835dcb41a79 | affected | git | 9ca11bd8222a612de0d2f54d050bfcf61ae2883f | Unavailable | None listed |
| 3d2a9d642512c21a12d19b9250e7a835dcb41a79 | affected | git | 0b7186d657ee55e2cdefae498f07d5c1961e8023 | Unavailable | None listed |
| 3d2a9d642512c21a12d19b9250e7a835dcb41a79 | affected | git | 5a9a1b24ddb510715f8f621263938186579a965c | Unavailable | None listed |
| 3d2a9d642512c21a12d19b9250e7a835dcb41a79 | affected | git | 2bbac98d0930e8161b1957dc0ec99de39ade1b3c | Unavailable | None listed |
| 5732f83596f8a573f2cde814cc76a54e1a8995c7 | affected | git | Unavailable | Unavailable | None listed |
| 5.9.12 | affected | semver | 5.10 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.10 | Unavailable | None listed |
| 5.10.111 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.34 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.16.20 | unaffected | semver | Unavailable | 5.16.* | None listed |
| 5.17.3 | unaffected | semver | Unavailable | 5.17.* | None listed |
| 5.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |