Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: regulator: stm32-pwr: fix of_iomap leak Smatch reports: drivers/regulator/stm32-pwr.c:166 stm32_pwr_regulator_probe() warn: 'base' from of_iomap() not released on lines: 151,166. In stm32_pwr_regulator_probe(), base is not released when devm_kzalloc() fails to allocate memory or devm_regulator_register() fails to register a new regulator device, which may cause a leak. To fix this issue, replace of_iomap() with devm_platform_ioremap_resource(). devm_platform_ioremap_resource() is a specialized function for platform devices. It allows 'base' to be automatically released whether the probe function succeeds or fails. Besides, use IS_ERR(base) instead of !base as the return value of devm_platform_ioremap_resource() can either be a pointer to the remapped memory or an ERR_PTR() encoded error code if the operation fails.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected dc62f951a6a8490bcccc7b6de36cd85bd57be740 before 824683dbec234a01bd49a0589ee3323594a6f4cf; affected dc62f951a6a8490bcccc7b6de36cd85bd57be740 before dfce9bb3517a78507cf96f9b83948d0b81338afa; affected dc62f951a6a8490bcccc7b6de36cd85bd57be740 before ad6481f49fb2c703efa3a929643934f24b666d6a; affected dc62f951a6a8490bcccc7b6de36cd85bd57be740 before f25994f7a9ad53eb756bc4869497c3ebe281ad5e; affected dc62f951a6a8490bcccc7b6de36cd85bd57be740 before c091bb49b3233307c7af73dae888f0799752af3d; affected dc62f951a6a8490bcccc7b6de36cd85bd57be740 before 0ad07e02be0d3f0d554653382ffe53ae4879378d; affected dc62f951a6a8490bcccc7b6de36cd85bd57be740 before c4a413e56d16a2ae84e6d8992f215c4dcc7fac20 |
| Linux / Linux | affected 5.2; unaffected 0 before 5.2; unaffected 5.4.243 through 5.4.*; unaffected 5.10.180 through 5.10.*; unaffected 5.15.111 through 5.15.*; unaffected 6.1.28 through 6.1.*; unaffected 6.2.15 through 6.2.*; unaffected 6.3.2 through 6.3.*; unaffected 6.4 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/824683dbec234a01bd49a0589ee3323594a6f4cf
- https://git.kernel.org/stable/c/dfce9bb3517a78507cf96f9b83948d0b81338afa
- https://git.kernel.org/stable/c/ad6481f49fb2c703efa3a929643934f24b666d6a
- https://git.kernel.org/stable/c/f25994f7a9ad53eb756bc4869497c3ebe281ad5e
- https://git.kernel.org/stable/c/c091bb49b3233307c7af73dae888f0799752af3d
- https://git.kernel.org/stable/c/0ad07e02be0d3f0d554653382ffe53ae4879378d
- https://git.kernel.org/stable/c/c4a413e56d16a2ae84e6d8992f215c4dcc7fac20