Description
In the Linux kernel, the following vulnerability has been resolved: cxl/acpi: Fix a use-after-free in cxl_parse_cfmws() KASAN and KFENCE detected an user-after-free in the CXL driver. This happens in the cxl_decoder_add() fail path. KASAN prints the following error: BUG: KASAN: slab-use-after-free in cxl_parse_cfmws (drivers/cxl/acpi.c:299) This happens in cxl_parse_cfmws(), where put_device() is called, releasing cxld, which is accessed later. Use the local variables in the dev_err() instead of pointing to the released memory. Since the dev_err() is printing a resource, change the open coded print format to use the %pr format specifier.
Product status
e50fe01e1f2a4aba2275edee7d5c77ac87674ddb before 748fadc08bcbdaf573b34d9784bb3dbd87441dbf
e50fe01e1f2a4aba2275edee7d5c77ac87674ddb before 316db489647b8ddc381682597e89787eac61a278
e50fe01e1f2a4aba2275edee7d5c77ac87674ddb before 4cf67d3cc9994a59cf77bb9c0ccf9007fe916afe
6.0
Any version before 6.0
6.1.43
6.4.8
6.5
References
git.kernel.org/...c/748fadc08bcbdaf573b34d9784bb3dbd87441dbf
git.kernel.org/...c/316db489647b8ddc381682597e89787eac61a278
git.kernel.org/...c/4cf67d3cc9994a59cf77bb9c0ccf9007fe916afe
