Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: media: cedrus: fix memory leak in cedrus_init_ctrls() In cedrus_init_ctrls(), the V4L2 control handler is initialized before allocating memory for ctx->ctrls. If this allocation fails, the function returns -ENOMEM without freeing the previously allocated handler resources, leading to a memory leak. Fix this by calling v4l2_ctrl_handler_free() on the ctx->ctrls allocation failure path. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1.1. An x86_64 allyesconfig build showed no new warnings. As we do not have an Allwinner SoC or board with a Cedrus VPU available to test with, no runtime testing was able to be performed.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 before 6fabacc3b79a528450aef4c32464da2ec681049e; affected 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 before 729a1ffab968b3c493f61d1cd683f5bafec500ea; affected 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 before ce5693b6e3a693fcdc3800af309363f6250104c8; affected 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 before 22441be29ec27c693f40c1ef499093275ef529d1; affected 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 before 79fd0b0161506fc9507bf7a6fe4c975a857a5be8; affected 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 before f78cf36cabf911da348ea80e4e9f430d74f6905c; affected 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 before 81aa608ac3a56cdd4aab0bd12442ed529a24ba31; affected 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 before 9df2fbe563194da1967a5db083442186c1323efe |
| Linux / Linux | affected 4.20; unaffected 0 before 4.20; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.51 through 6.18.*; unaffected 7.2.5 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/6fabacc3b79a528450aef4c32464da2ec681049e
- https://git.kernel.org/stable/c/729a1ffab968b3c493f61d1cd683f5bafec500ea
- https://git.kernel.org/stable/c/ce5693b6e3a693fcdc3800af309363f6250104c8
- https://git.kernel.org/stable/c/22441be29ec27c693f40c1ef499093275ef529d1
- https://git.kernel.org/stable/c/79fd0b0161506fc9507bf7a6fe4c975a857a5be8
- https://git.kernel.org/stable/c/f78cf36cabf911da348ea80e4e9f430d74f6905c
- https://git.kernel.org/stable/c/81aa608ac3a56cdd4aab0bd12442ed529a24ba31
- https://git.kernel.org/stable/c/9df2fbe563194da1967a5db083442186c1323efe