CVE-2021-47425

i2c: acpi: fix resource leak in reconfiguration device addition

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

21 May 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

In the Linux kernel, the following vulnerability has been resolved: i2c: acpi: fix resource leak in reconfiguration device addition acpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a reference on the adapter which is never released which will result in a reference count leak and render the adapter unremovable. Make sure to put the adapter after creating the client in the same manner that we do for OF. [wsa: fixed title]

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/3d9d458a8aaafa47268ea4f1b4114a9f12927989 https://git.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494b https://git.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950f https://git.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694 https://git.kernel.org/stable/c/b8090a84d7758b929d348bafbd86bb7a10c5fb63 https://git.kernel.org/stable/c/f86de018fd7a24ee07372d55ffa7824f0c674a95