Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator BPF programs may call next() and destroy() on BPF iterators even after new() returns an error value (e.g. bpf_for_each() macro ignores error returns from new()). bpf_iter_scx_dsq_new() could leave the iterator in an uninitialized state after an error return causing bpf_iter_scx_dsq_next() to dereference garbage data. Make bpf_iter_scx_dsq_new() always clear $kit->dsq so that next() and destroy() become noops.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 650ba21b131ed1f8ee57826b2c6295a3be221132 before 0102989af4c334d1d98b2a0fd4d61a5152e39b72; affected 650ba21b131ed1f8ee57826b2c6295a3be221132 before 255dd31bfc4a67a19b1fc2cd130a50284dadfe3a; affected 650ba21b131ed1f8ee57826b2c6295a3be221132 before 428dc9fc0873989d73918d4a9cc22745b7bbc799 |
| Linux / Linux | affected 6.12; unaffected 0 before 6.12; unaffected 6.12.30 through 6.12.*; unaffected 6.14.8 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.