CVE-2022-50138

Summary

In the Linux kernel, the following vulnerability has been resolved:

RDMA/qedr: Fix potential memory leak in __qedr_alloc_mr()

__qedr_alloc_mr() allocates a memory chunk for "mr->info.pbl_table" with init_mr_info(). When rdma_alloc_tid() and rdma_register_tid() fail, "mr" is released while "mr->info.pbl_table" is not released, which will lead to a memory leak.

We should release the "mr->info.pbl_table" with qedr_free_pbl() when error occurs to fix the memory leak.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe0290cce6ac02f8e5ec501f25f6f6900f384550c < 79ce50dddaf28b5c57911ecc80a2be17a0b17f83affected
LinuxLinuxe0290cce6ac02f8e5ec501f25f6f6900f384550c < 7e647a8d5fc0a2c8e0f36f585a6388286a25bb15affected
LinuxLinuxe0290cce6ac02f8e5ec501f25f6f6900f384550c < 07ba048df306dc93fc4d2ef670b9e24644a2069faffected
LinuxLinuxe0290cce6ac02f8e5ec501f25f6f6900f384550c < b4c9f7db9f0148423557539af0fdf513338efe08affected
LinuxLinuxe0290cce6ac02f8e5ec501f25f6f6900f384550c < b3236a64ddd125a455ef5b5316c1b9051b732974affected
LinuxLinux4.9affected
LinuxLinux0 < 4.9unaffected
LinuxLinux5.10.137 <= 5.10.*unaffected
LinuxLinux5.15.61 <= 5.15.*unaffected
LinuxLinux5.18.18 <= 5.18.*unaffected
LinuxLinux5.19.2 <= 5.19.*unaffected
LinuxLinux6.0 <= *unaffected

Weaknesses

References