Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: pinctrl: single: fix refcount leak in pcs_add_gpio_func() of_parse_phandle_with_args() returns a device_node pointer with refcount incremented in gpiospec.np. The loop iterates through all phandles but never releases the reference, causing a refcount leak on each iteration. Add of_node_put() calls to release the reference after extracting the needed arguments and on the error path when devm_kzalloc() fails. This bug was detected by our static analysis tool and verified by my code review.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a1a277eb76b3507df7c41774048a644aa4dfd096 before 191bfd5710d6a7f48ba4315d8d3e908dcc15243c; affected a1a277eb76b3507df7c41774048a644aa4dfd096 before 3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b; affected a1a277eb76b3507df7c41774048a644aa4dfd096 before 456a60d06c09a92680dc35fabca68024badcc28e; affected a1a277eb76b3507df7c41774048a644aa4dfd096 before 99cc7352156c65201c675f750e0e77c4c73d93f5; affected a1a277eb76b3507df7c41774048a644aa4dfd096 before 7814b1431848854b56717086e2b61bea3c59753d; affected a1a277eb76b3507df7c41774048a644aa4dfd096 before e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4; affected a1a277eb76b3507df7c41774048a644aa4dfd096 before 5b9e84d27e310f22c4ba45fedbc4f5baf43dd823; affected a1a277eb76b3507df7c41774048a644aa4dfd096 before 353353309b0f7afa407df29e455f9d15b5acc296 |
| Linux / Linux | affected 3.10; unaffected 0 before 3.10; unaffected 5.10.252 through 5.10.*; unaffected 5.15.202 through 5.15.*; unaffected 6.1.165 through 6.1.*; unaffected 6.6.128 through 6.6.*; unaffected 6.12.75 through 6.12.*; unaffected 6.18.14 through 6.18.*; unaffected 6.19.4 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/191bfd5710d6a7f48ba4315d8d3e908dcc15243c
- https://git.kernel.org/stable/c/3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b
- https://git.kernel.org/stable/c/456a60d06c09a92680dc35fabca68024badcc28e
- https://git.kernel.org/stable/c/99cc7352156c65201c675f750e0e77c4c73d93f5
- https://git.kernel.org/stable/c/7814b1431848854b56717086e2b61bea3c59753d
- https://git.kernel.org/stable/c/e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4
- https://git.kernel.org/stable/c/5b9e84d27e310f22c4ba45fedbc4f5baf43dd823
- https://git.kernel.org/stable/c/353353309b0f7afa407df29e455f9d15b5acc296