CVE-2022-49076 (GCVE-0-2022-49076)
Vulnerability from cvelistv5
Published
2025-02-26 01:54
Modified
2025-05-04 12:44
Severity ?
7.8 (High) - 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: 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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b7186d657ee55e2cdefae498f07d5c1961e8023Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2bbac98d0930e8161b1957dc0ec99de39ade1b3cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5a9a1b24ddb510715f8f621263938186579a965cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f54364ff6cfcd14cddf5441c4a490bb28dd69f7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9ca11bd8222a612de0d2f54d050bfcf61ae2883fPatch
Impacted products
Vendor Product Version
Linux Linux Version: 3d2a9d642512c21a12d19b9250e7a835dcb41a79
Version: 3d2a9d642512c21a12d19b9250e7a835dcb41a79
Version: 3d2a9d642512c21a12d19b9250e7a835dcb41a79
Version: 3d2a9d642512c21a12d19b9250e7a835dcb41a79
Version: 3d2a9d642512c21a12d19b9250e7a835dcb41a79
Version: 5732f83596f8a573f2cde814cc76a54e1a8995c7
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   Linux Linux Version: 5.10
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  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.