projects / linux-block.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 1cb95e0) | patch
acpi/nfit: Fix race accessing memdev in nfit_get_smbios_id()
authorTony Luck <tony.luck@intel.com>
Fri, 11 Jan 2019 22:46:37 +0000 (14:46 -0800)
committerDan Williams <dan.j.williams@intel.com>
Fri, 11 Jan 2019 22:50:29 +0000 (14:50 -0800)
commit0919871ac37fdcf46c7657da0f1742efe096b399
treed5cba0cc572ae3f4fd0ccd125e066043b71168a1tree | snapshot
parent1cb95e072ede5e3d6a54eefd520db21b45985896commit | diff
acpi/nfit: Fix race accessing memdev in nfit_get_smbios_id()

Possible race accessing memdev structures after dropping the
mutex. Dan Williams says this could race against another thread
that is doing:

 # echo "ACPI0012:00" > /sys/bus/acpi/drivers/nfit/unbind

Reported-by: Jane Chu <jane.chu@oracle.com>
Fixes: 23222f8f8dce ("acpi, nfit: Add function to look up nvdimm...")
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
drivers/acpi/nfit/core.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)