CVE-2022-49029
hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails
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Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails Smatch report warning as follows: drivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn: '&data->list' not removed from list If ibmpex_find_sensors() fails in ibmpex_register_bmc(), data will be freed, but data->list will not be removed from driver_data.bmc_data, then list traversal may cause UAF. Fix by removeing it from driver_data.bmc_data before free().
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/24b9633f7db7f4809be7053df1d2e117e7c2de10
- https://git.kernel.org/stable/c/45f6e81863747c0d7bc6a95ec51129900e71467a
- https://git.kernel.org/stable/c/798198273bf86673b970b51acdb35e57f42b3fcb
- https://git.kernel.org/stable/c/7b2b67fe1339389e0bf3c37c7a677a004ac0e4e3
- https://git.kernel.org/stable/c/90907cd4d11351ff76c9a447bcb5db0e264c47cd
References (8)
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