Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code() As of_find_node_by_name() release the reference of the argument device node, tegra_emc_find_node_by_ram_code() releases some device nodes while still in use, resulting in possible UAFs. According to the bindings and the in-tree DTS files, the "emc-tables" node is always device's child node with the property "nvidia,use-ram-code", and the "lpddr2" node is a child of the "emc-tables" node. Thus utilize the for_each_child_of_node() macro and of_get_child_by_name() instead of of_find_node_by_name() to simplify the code. This bug was found by an experimental verification tool that I am developing. [krzysztof: applied v1, adjust the commit msg to incorporate v2 parts]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 96e5da7c842424bcf64afe1082b960b42b96190b before c3def10c610ae046aaa61d00528e7bd15e4ad8d3; affected 96e5da7c842424bcf64afe1082b960b42b96190b before e9d07e91de140679eeaf275f47ad154467cb9e05; affected 96e5da7c842424bcf64afe1082b960b42b96190b before c144423cb07e4e227a8572d5742ca2b36ada770d; affected 96e5da7c842424bcf64afe1082b960b42b96190b before 3b02273446e23961d910b50cc12528faec649fb2; affected 96e5da7c842424bcf64afe1082b960b42b96190b before 755e44538c190c31de9090d8e8821d228fcfd416; affected 96e5da7c842424bcf64afe1082b960b42b96190b before b9784e5cde1f9fb83661a70e580e381ae1264d12 |
| Linux / Linux | affected 5.0; unaffected 0 before 5.0; unaffected 5.15.179 through 5.15.*; unaffected 6.1.129 through 6.1.*; unaffected 6.6.76 through 6.6.*; unaffected 6.12.13 through 6.12.*; unaffected 6.13.2 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c3def10c610ae046aaa61d00528e7bd15e4ad8d3
- https://git.kernel.org/stable/c/e9d07e91de140679eeaf275f47ad154467cb9e05
- https://git.kernel.org/stable/c/c144423cb07e4e227a8572d5742ca2b36ada770d
- https://git.kernel.org/stable/c/3b02273446e23961d910b50cc12528faec649fb2
- https://git.kernel.org/stable/c/755e44538c190c31de9090d8e8821d228fcfd416
- https://git.kernel.org/stable/c/b9784e5cde1f9fb83661a70e580e381ae1264d12
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.