Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix a potential memory leak in rtw_init_cmd_priv() In rtw_init_cmd_priv(), if `pcmdpriv->rsp_allocated_buf` is allocated in failure, then `pcmdpriv->cmd_allocated_buf` will be not properly released. Besides, considering there are only two error paths and the first one can directly return, so we do not need implicitly jump to the `exit` tag to execute the error handler. So this patch added `kfree(pcmdpriv->cmd_allocated_buf);` on the error path to release the resource and simplified the return logic of rtw_init_cmd_priv(). As there is no proper device to test with, no runtime testing was performed.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b before e5d8f05edb36fc4ab15beec62cb6ab62f5a60fe2; affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b before e6cc39db24a63f68314473621020ed8cad7be423; affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b before 39bef9c6a91bbb790d04c1347cfeae584541fb6a; affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b before a5be64ff6d21f7805a91e6d81f53fc19cd9f0fae; affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b before 8db6ca84eee0ac258706f3fca54f7c021cb159ef; affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b before 708056fba733a73d926772ea4ce9a42d240345da |
| Linux / Linux | affected 4.12; unaffected 0 before 4.12; unaffected 5.4.220 through 5.4.*; unaffected 5.10.150 through 5.10.*; unaffected 5.15.75 through 5.15.*; unaffected 5.19.17 through 5.19.*; unaffected 6.0.3 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e5d8f05edb36fc4ab15beec62cb6ab62f5a60fe2
- https://git.kernel.org/stable/c/e6cc39db24a63f68314473621020ed8cad7be423
- https://git.kernel.org/stable/c/39bef9c6a91bbb790d04c1347cfeae584541fb6a
- https://git.kernel.org/stable/c/a5be64ff6d21f7805a91e6d81f53fc19cd9f0fae
- https://git.kernel.org/stable/c/8db6ca84eee0ac258706f3fca54f7c021cb159ef
- https://git.kernel.org/stable/c/708056fba733a73d926772ea4ce9a42d240345da