Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: vfio/qat: fix f_pos race in qat_vf_resume_write() qat_vf_resume_write() checks filp->f_pos before taking migf->lock, but copies into the migration-state buffer after taking the lock and re-reading the shared file position. Two concurrent writers could therefore pass the bounds check with the old offset, then have the second writer copy after the first advanced f_pos, writing past the end of the migration-state buffer. Take migf->lock before doing the boundary checks.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 before 6465af0004dc1b067129a26ef44f19cdf13bbce6; affected bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 before d416dcefdbac90d96b22485fd93f28229ad9984b; affected bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 before b6fd7a40a66485c8aa8156d8fcf50b95cb8ba281; affected bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 before 4ec5e932e636896e97e4c6a8205b0ac76d52421a |
| Linux / Linux | affected 6.10; unaffected 0 before 6.10; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.