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| author | Jason Gunthorpe <jgg@nvidia.com> | 2025-12-05 15:42:47 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2025-12-15 20:34:41 -0400 |
| commit | b80fab281349f107a07e841eb412a86e2877ae88 (patch) | |
| tree | b67131839357bff13c6c63f58ce489272ff0a95d /drivers/usb/cdns3/cdns3-ti.c | |
| parent | 5b244b077c0b0e76573fbb9542cf038e42368901 (diff) | |
iommufd/selftest: Do not leak the hwpt if IOMMU_TEST_OP_MD_CHECK_MAP fails
If the input validation fails it returned without freeing the hwpt
refcount causing a leak. This triggers a WARN_ON when closing the fd:
WARNING: drivers/iommu/iommufd/main.c:369 at iommufd_fops_release+0x385/0x430, CPU#1: repro/724
Found by szykaller.
Fixes: e93d5945ed5b ("iommufd: Change the selftest to use iommupt instead of xarray")
Link: https://patch.msgid.link/r/0-v1-c8ed57e24380+44ae-iommufd_selftest_hwpt_leak_jgg@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Reported-by: "Lai, Yi" <yi1.lai@linux.intel.com>
Closes: https://lore.kernel.org/r/aTJGMaqwQK0ASj0G@ly-workstation
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-ti.c')
0 files changed, 0 insertions, 0 deletions