scsi: bfa: Ensure the copied buf is NUL terminated

Summary

In the Linux kernel, the following vulnerability has been resolved: scsi: bfa: Ensure the copied buf is NUL terminated Currently, we allocate a nbytes-sized kernel buffer and copy nbytes from userspace to that buffer. Later, we use sscanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using sscanf. Fix this issue by using memdup_user_nul instead of memdup_user.

Timeline

1. Jun 19, 2024, 1:35 PM UTCCVE published
2. Sep 10, 2024, 5:14 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Oct 15, 2026, 12:43 AM UTCRecord last updated

Affected versions

• Linux Linux

  From 9f30b674759b9a2da25aefe25d885161d8a911cb · fixed in 481fc0c8617304a67649027c4a44723a139a0462; From 9f30b674759b9a2da25aefe25d885161d8a911cb · fixed in 595a6b98deec01b6dbb20139f71edcd5fb760ec2; From 9f30b674759b9a2da25aefe25d885161d8a911cb · fixed in 00b425ff0891283207d7bad607a2412225274d7a; From 9f30b674759b9a2da25aefe25d885161d8a911cb · fixed in 1708e3cf2488788cba5489e4f913d227de757baf; From 9f30b674759b9a2da25aefe25d885161d8a911cb · fixed in 7d3e694c4fe30f3aba9cd5ae86fb947a54c3db5c; From 9f30b674759b9a2da25aefe25d885161d8a911cb · fixed in 204714e68015d6946279719fd464ecaf57240f35; From 9f30b674759b9a2da25aefe25d885161d8a911cb · fixed in 7510fab46b1cbd1680e2a096e779aec3334b4143; From 9f30b674759b9a2da25aefe25d885161d8a911cb · fixed in ecb76200f5557a2886888aaa53702da1ab9e6cdf; From 9f30b674759b9a2da25aefe25d885161d8a911cb · fixed in 13d0cecb4626fae67c00c84d3c7851f6b62f7df3

• Linux Linux

  3.19

• KernelLinux

  From 3.19.0 · fixed in 4.19.316; From 4.20.0 · fixed in 5.4.278; From 5.5.0 · fixed in 5.10.219; From 5.11.0 · fixed in 5.15.161; From 5.16.0 · fixed in 6.1.93; From 6.2.0 · fixed in 6.6.33; From 6.7.0 · fixed in 6.8.12; From 6.9.0 · fixed in 6.9.3

References 9