On Mon, Dec 2, 2024 at 10:19 PM Zhuo, Qiuxu <[email protected]> wrote: > > Hi, > > I got the following build errors from kernel/auditsc.c file. > > The GCC version : 7.5.0 > Kernel version : v6.13-rc1 > The bisect commit : 286d7a54c8a2 ("auditsc: replace memcpy() with strscpy()")
Unfortunately this is a known GCC bug, see the lore link below. Kees, Yafang, do you have any more information or compiler-based workarounds for this bug? https://lore.kernel.org/all/caloahbbb-__eyerw82qns3wmgi7_bppaacy2urvmpwx3zkv...@mail.gmail.com/ > Build error logs: > > from kernel/auditsc.c:37: > In function ‘sized_strscpy’, > inlined from ‘__audit_ptrace’ at kernel/auditsc.c:2732:2: > ./include/linux/fortify-string.h:293:3: error: call to ‘__write_overflow’ > declared with attribute error: detected write beyond size of object (1st > parameter) > __write_overflow(); > ^~~~~~~~~~~~~~~~~~ > In function ‘sized_strscpy’, > inlined from ‘audit_signal_info_syscall’ at kernel/auditsc.c:2759:3: > ./include/linux/fortify-string.h:293:3: error: call to ‘__write_overflow’ > declared with attribute error: detected write beyond size of object (1st > parameter) > __write_overflow(); > ^~~~~~~~~~~~~~~~~~ -- paul-moore.com
