https://bugzilla.kernel.org/show_bug.cgi?id=216389 Bug ID: 216389 Summary: net/bluetooth/l2cap_core.c fails bounds check with GCC 12.2 Product: Drivers Version: 2.5 Kernel Version: 5.19.2 Hardware: PPC-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Bluetooth Assignee: linux-bluetooth@xxxxxxxxxxxxxxx Reporter: erhard_f@xxxxxxxxxxx CC: marcel@xxxxxxxxxxxx Regression: No Created attachment 301616 --> https://bugzilla.kernel.org/attachment.cgi?id=301616&action=edit kernel .config (5.19.2, Talos II Secure Workstation) I get this on my Talos II when building v5.19.2. Does not happen with GCC 11.3. # make CALL scripts/checksyscalls.sh CALL scripts/atomic/check-atomics.sh CHK include/generated/compile.h CC [M] net/bluetooth/l2cap_core.o In file included from ./include/linux/string.h:253, from ./include/linux/bitmap.h:11, from ./include/linux/cpumask.h:12, from ./include/linux/mm_types_task.h:14, from ./include/linux/mm_types.h:5, from ./include/linux/buildid.h:5, from ./include/linux/module.h:14, from net/bluetooth/l2cap_core.c:31: In function 'memcmp', inlined from 'bacmp' at ./include/net/bluetooth/bluetooth.h:302:9, inlined from 'l2cap_global_chan_by_psm' at net/bluetooth/l2cap_core.c:2002:15: ./include/linux/fortify-string.h:44:33: error: '__builtin_memcmp' specified bound 6 exceeds source size 0 [-Werror=stringop-overread] 44 | #define __underlying_memcmp __builtin_memcmp | ^ ./include/linux/fortify-string.h:420:16: note: in expansion of macro '__underlying_memcmp' 420 | return __underlying_memcmp(p, q, size); | ^~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make[2]: *** [scripts/Makefile.build:249: net/bluetooth/l2cap_core.o] Fehler 1 make[1]: *** [scripts/Makefile.build:466: net/bluetooth] Fehler 2 make: *** [Makefile:1849: net] Fehler 2 -- You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.
