linux-next test error: UBSAN: array-index-out-of-bounds in alloc

Title	Replies (including bot)	Last reply
[PATCH v2] pid: Replace struct pid 1-element array with flex-array	3 (3)	2023/07/01 06:24
Re: [GIT PULL] pid: use flex array	1 (1)	2023/06/30 08:04
[PATCH] pid: Replace struct pid 1-element array with flex-array	4 (4)	2023/05/30 14:44
[syzbot] [kernel?] linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid	2 (3)	2023/05/17 15:38

================================================================================ UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 index 1 is out of range for type 'upid [1]' CPU: 0 PID: 5002 Comm: syz-executor.0 Not tainted 6.4.0-rc2-next-20230517-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x136/0x150 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0xd5/0x140 lib/ubsan.c:348 alloc_pid+0xbe5/0xdd0 kernel/pid.c:244 copy_process+0x45da/0x7660 kernel/fork.c:2522 kernel_clone+0xeb/0x890 kernel/fork.c:2914 __do_sys_clone+0xba/0x100 kernel/fork.c:3057 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc91c689e9b Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00 RSP: 002b:00007ffee7cf2850 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffee7cf2ea8 RCX: 00007fc91c689e9b RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556433400 R10: 00005555564336d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffee7cf2940 R14: 00007fc91c7ac9d8 R15: 000000000000000c </TASK> ================================================================================

Time	Kernel	Commit	Syzkaller	Config	Log	Report	Manager	Title
2023/05/18 00:31	linux-next	065efa589871	3bb7af1d	.config	console log	report	ci-upstream-linux-next-kasan-gce-root	linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
2023/05/18 00:30	linux-next	065efa589871	3bb7af1d	.config	console log	report	ci-upstream-linux-next-kasan-gce-root	linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
2023/05/18 00:30	linux-next	065efa589871	3bb7af1d	.config	console log	report	ci-upstream-linux-next-kasan-gce-root	linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
2023/05/17 08:23	linux-next	065efa589871	eaac4681	.config	console log	report	ci-upstream-linux-next-kasan-gce-root	linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
2023/05/17 08:23	linux-next	065efa589871	eaac4681	.config	console log	report	ci-upstream-linux-next-kasan-gce-root	linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
2023/05/17 08:23	linux-next	065efa589871	eaac4681	.config	console log	report	ci-upstream-linux-next-kasan-gce-root	linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
2023/05/17 02:35	linux-next	065efa589871	11c89444	.config	console log	report	ci-upstream-linux-next-kasan-gce-root	linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
2023/05/17 02:35	linux-next	065efa589871	11c89444	.config	console log	report	ci-upstream-linux-next-kasan-gce-root	linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
2023/05/17 02:34	linux-next	065efa589871	11c89444	.config	console log	report	ci-upstream-linux-next-kasan-gce-root	linux-next test error: UBSAN: array-index-out-of-bounds in alloc_pid