dmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config()

Summary

In the Linux kernel, the following vulnerability has been resolved: dmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config() Fix a memory leak in gpi_peripheral_config() where the original memory pointed to by gchan->config could be lost if krealloc() fails. The issue occurs when: 1. gchan->config points to previously allocated memory 2. krealloc() fails and returns NULL 3. The function directly assigns NULL to gchan->config, losing the reference to the original memory 4. The original memory becomes unreachable and cannot be freed Fix this by using a temporary variable to hold the krealloc() result and only updating gchan->config when the allocation succeeds. Found via static analysis and code review.

Timeline

1. Jan 31, 2026, 11:42 AM UTCCVE published
2. Oct 15, 2026, 1:12 AM UTCRecord last updated

Affected versions

• Linux Linux

  From 5d0c3533a19f48e5e7e73806a3e4b29cd4364130 · fixed in 4532f18e4ab36def1f55cd936d0fc002b2ce34c2; From 5d0c3533a19f48e5e7e73806a3e4b29cd4364130 · fixed in 694ab1f6f16cb69f7c5ef2452b22ba7b00a3c7c7; From 5d0c3533a19f48e5e7e73806a3e4b29cd4364130 · fixed in 6bf4ef078fd11910988889a6c0b3698d2e0c89af; From 5d0c3533a19f48e5e7e73806a3e4b29cd4364130 · fixed in 01b1d781394fc9b83015e3a3cd46b17bda842bd8; From 5d0c3533a19f48e5e7e73806a3e4b29cd4364130 · fixed in 55a67ba5ac4cebfd54cc8305d4d57a0f1dfe6a85; From 5d0c3533a19f48e5e7e73806a3e4b29cd4364130 · fixed in 3f747004bbd641131d9396d87b5d2d3d1e182728

• Linux Linux

  5.11

• KernelLinux

  From 5.11.0 · fixed in 5.15.199; From 5.16.0 · fixed in 6.1.162; From 6.2.0 · fixed in 6.6.122; From 6.7.0 · fixed in 6.12.67; From 6.13.0 · fixed in 6.18.7

References 6