Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e50fe01e1f2a4aba2275edee7d5c77ac87674ddb before 748fadc08bcbdaf573b34d9784bb3dbd87441dbf; affected e50fe01e1f2a4aba2275edee7d5c77ac87674ddb before 316db489647b8ddc381682597e89787eac61a278; affected e50fe01e1f2a4aba2275edee7d5c77ac87674ddb before 4cf67d3cc9994a59cf77bb9c0ccf9007fe916afe |
| Linux / Linux | affected 6.0; unaffected 0 before 6.0; unaffected 6.1.43 through 6.1.*; unaffected 6.4.8 through 6.4.*; unaffected 6.5 through * |
CWE
No CWE identifiers supplied.