Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE When using bpftool to pin {PROG, MAP, LINK} without FILE, segmentation fault will occur. The reson is that the lack of FILE will cause strlen to trigger NULL pointer dereference. The corresponding stacktrace is shown below: do_pin do_pin_any do_pin_fd mount_bpffs_for_pin strlen(name) <- NULL pointer dereference Fix it by adding validation to the common process.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 75a1e792c335b5c6d7fdb1014da47aeb64c5944f before 8c80b2fca4112d724dde477aed13f7b0510a2792; affected 75a1e792c335b5c6d7fdb1014da47aeb64c5944f before 6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a; affected 75a1e792c335b5c6d7fdb1014da47aeb64c5944f before da5161ba94c5e9182c301dd4f09c94f715c068bd; affected 75a1e792c335b5c6d7fdb1014da47aeb64c5944f before 34de8e6e0e1f66e431abf4123934a2581cb5f133 |
| Linux / Linux | affected 5.7; unaffected 0 before 5.7; unaffected 5.10.155 through 5.10.*; unaffected 5.15.79 through 5.15.*; unaffected 6.0.9 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8c80b2fca4112d724dde477aed13f7b0510a2792
- https://git.kernel.org/stable/c/6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a
- https://git.kernel.org/stable/c/da5161ba94c5e9182c301dd4f09c94f715c068bd
- https://git.kernel.org/stable/c/34de8e6e0e1f66e431abf4123934a2581cb5f133
ADP enrichment
No English description supplied.
No references supplied.