CVE-2022-50138

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

MEDIUM

5.5

CVSS Score

Published: June 18, 2025 at 11:03 AM UTC

Updated: June 17, 2026 at 05:22 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.9 ≤ v < 5.10.1374.9 ≤ v < 5.15.614.9 ≤ v < 5.18.184.9 ≤ v < 5.19.24.9 ≤ v < 6.05.11 ≤ v < 5.15.615.16 ≤ v < 5.18.185.19 ≤ v < 5.19.24.9e0290cce6ac02f8e5ec501f25f6f6900f384550c

Vendor states this is fixed in 07ba048df306dc93fc4d2ef670b9e24644a2069f (fixed)

Vendor states this is fixed in 79ce50dddaf28b5c57911ecc80a2be17a0b17f83 (fixed)

Vendor states this is fixed in 7e647a8d5fc0a2c8e0f36f585a6388286a25bb15 (fixed)

Vendor states this is fixed in b3236a64ddd125a455ef5b5316c1b9051b732974 (fixed)

Vendor states this is fixed in b4c9f7db9f0148423557539af0fdf513338efe08 (fixed)

Vendor states this is fixed in 4.9 (unaffected)

Vendor states this is fixed in 5.10.137 (unaffected)

Vendor states this is fixed in 5.15.61 (unaffected)

Vendor states this is fixed in 5.18.18 (unaffected)

Vendor states this is fixed in 5.19.2 (unaffected)

Vendor states this is fixed in 6.0 (unaffected)