Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: iio: buffer: hw-consumer: fix use-after-free in error path In the err_put_buffers cleanup path of iio_hw_consumer_alloc(), the code was using list_for_each_entry() to iterate through buffers while calling iio_buffer_put() which can free the current buffer if refcount drops to 0. The list_for_each_entry() loop macro then evaluates buf->head.next to continue iteration, accessing the freed buffer. Fix this by using list_for_each_entry_safe().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 48b66f8f936f369bb1a43c12aedbfeb2975baf4c before b71893c57730809c222766e5718bb33610f11963; affected 48b66f8f936f369bb1a43c12aedbfeb2975baf4c before 2ff615fc455acda5425c4900160cbe11cfea4449; affected 48b66f8f936f369bb1a43c12aedbfeb2975baf4c before d2759d49860b9a39b5cde2fb88e4b822ddf5f58f; affected 48b66f8f936f369bb1a43c12aedbfeb2975baf4c before 29783e6b6ec0b7152a15e53a063f17537e81177d; affected 48b66f8f936f369bb1a43c12aedbfeb2975baf4c before e965627f0d442bfcae3f496c90cb653fb0917a61; affected 48b66f8f936f369bb1a43c12aedbfeb2975baf4c before a3763ae33476328cf8d661742deb9daec78eac96; affected 48b66f8f936f369bb1a43c12aedbfeb2975baf4c before 9319c94f63ed10723afd738d79f5617daba87cc8; affected 48b66f8f936f369bb1a43c12aedbfeb2975baf4c before 6f5ed4f2c7c83f33344e0ba179f72a12e5dad4a4 |
| Linux / Linux | affected 4.16; unaffected 0 before 4.16; unaffected 5.10.259 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.176 through 6.1.*; unaffected 6.6.143 through 6.6.*; unaffected 6.12.93 through 6.12.*; unaffected 6.18.35 through 6.18.*; unaffected 7.0.12 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b71893c57730809c222766e5718bb33610f11963
- https://git.kernel.org/stable/c/2ff615fc455acda5425c4900160cbe11cfea4449
- https://git.kernel.org/stable/c/d2759d49860b9a39b5cde2fb88e4b822ddf5f58f
- https://git.kernel.org/stable/c/29783e6b6ec0b7152a15e53a063f17537e81177d
- https://git.kernel.org/stable/c/e965627f0d442bfcae3f496c90cb653fb0917a61
- https://git.kernel.org/stable/c/a3763ae33476328cf8d661742deb9daec78eac96
- https://git.kernel.org/stable/c/9319c94f63ed10723afd738d79f5617daba87cc8
- https://git.kernel.org/stable/c/6f5ed4f2c7c83f33344e0ba179f72a12e5dad4a4