PCI/PTM: Fix pcie_ptm_create_debugfs() memory leak

Browse source

[ Upstream commit 62171369cf ]

In pcie_ptm_create_debugfs(), if devm_kasprintf() fails after successfully
allocating ptm_debugfs with kzalloc(), the function returns without freeing
the allocated memory, resulting in a memory leak.

Free ptm_debugfs before returning in the devm_kasprintf() error path and in
pcie_ptm_destroy_debugfs().

Fixes: 132833405e ("PCI: Add debugfs support for exposing PTM context")
Signed-off-by: Aadityarangan Shridhar Iyengar <adiyenga@cisco.com>
[bhelgaas: squash additional fix from Mani:
https://lore.kernel.org/r/pdp4xc4d5ee3e547mmdro5riui3mclduqdl7j6iclfbozo2a4c@7m3qdm6yrhuv]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20260111163650.33168-1-adiyenga@cisco.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Aadityarangan Shridhar Iyengar 2026-01-11 22:06:50 +05:30 • committed by Greg Kroah-Hartman

parent aeddfb00bb

commit 5b1f6531d4

1 changed files with 4 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

drivers/pci/pcie/ptm.c

View file