Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: media: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe Both mxc_isi_crossbar_init() and mxc_isi_pipe_init() call v4l2_subdev_init_finalize() which allocates the subdev active state, but neither mxc_isi_crossbar_cleanup() nor mxc_isi_pipe_cleanup() calls v4l2_subdev_cleanup() to free it. This causes a memory leak on every rmmod, reported by kmemleak: unreferenced object 0xffff0000d06fc800 (size 192): comm "(udev-worker)", pid 254, jiffies 4294913455 backtrace (crc 36eeae58): kmemleak_alloc+0x34/0x40 __kvmalloc_node_noprof+0x5f8/0x7d8 __v4l2_subdev_state_alloc+0x1fc/0x30c __v4l2_subdev_init_finalize+0x178/0x368 Add the missing v4l2_subdev_cleanup() calls before media_entity_cleanup() in both crossbar and pipe cleanup paths.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cf21f328fcafacf4f96e7a30ef9dceede1076378 before 549dd1afce2cf79a826d1f9742effb4565d52871; affected cf21f328fcafacf4f96e7a30ef9dceede1076378 before f04ec98605420e7c2c1ad6d2f6fb26692d4f218a; affected cf21f328fcafacf4f96e7a30ef9dceede1076378 before 9e61258fbc3cfc053e4c2ed72254c2de76772354; affected cf21f328fcafacf4f96e7a30ef9dceede1076378 before 9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5; affected cf21f328fcafacf4f96e7a30ef9dceede1076378 before 567418eedd25b3d86d489807682030b4b98b73d9 |
| Linux / Linux | affected 6.4; unaffected 0 before 6.4; unaffected 6.6.148 through 6.6.*; unaffected 6.12.101 through 6.12.*; unaffected 6.18.42 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/549dd1afce2cf79a826d1f9742effb4565d52871
- https://git.kernel.org/stable/c/f04ec98605420e7c2c1ad6d2f6fb26692d4f218a
- https://git.kernel.org/stable/c/9e61258fbc3cfc053e4c2ed72254c2de76772354
- https://git.kernel.org/stable/c/9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5
- https://git.kernel.org/stable/c/567418eedd25b3d86d489807682030b4b98b73d9