linux: In the Linux kernel, the following vulnerability has been resolved: regmap: set debugfs_name to NULL after it is fre...
CVE-2021-47058 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47058, released February 29, 2024. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: regmap: set debugfs_name to NULL after it is freed There is a upstream commit cffa4b2122f5("regmap:debugfs: Fix a memory leak when calling regmap_attach_dev") that adds a if condition when create name for debugfs_name. With below function invoking logical, debugfs_name is freed in regmap_debugfs_exit(), but it is not created again because of the if condition introduced by above commit. regmap_reinit_cache() regmap_debugfs_exit() ... regmap_debugfs_init() So, set debugfs_name to NULL after it is freed.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.10.38-1 | DEBIAN-CVE-2021-47058 | Feb 29, 2024 |
| linux · Debian 13.5 (trixie) | 5.10.38-1 | DEBIAN-CVE-2021-47058 | Feb 29, 2024 |
| linux · Debian 14 | 5.10.38-1 | DEBIAN-CVE-2021-47058 | Feb 29, 2024 |
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