================================================================== BUG: KASAN: vmalloc-out-of-bounds in idempotent kernel/module/main.c:3078 [inline] BUG: KASAN: vmalloc-out-of-bounds in init_module_from_file+0x62c/0x6a0 kernel/module/main.c:3124 Read of size 8 at addr ffffc9000c2ffe20 by task syz-executor.3/13721 CPU: 1 PID: 13721 Comm: syz-executor.3 Not tainted 6.4.0-next-20230630-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:364 print_report mm/kasan/report.c:475 [inline] kasan_report+0x11d/0x130 mm/kasan/report.c:588 idempotent kernel/module/main.c:3078 [inline] init_module_from_file+0x62c/0x6a0 kernel/module/main.c:3124 __do_sys_finit_module kernel/module/main.c:3171 [inline] __se_sys_finit_module kernel/module/main.c:3154 [inline] __x64_sys_finit_module+0xfd/0x190 kernel/module/main.c:3154 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: 0033:0x7f4f2ea8c389 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4f2f7c9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 00007f4f2ebabf80 RCX: 00007f4f2ea8c389 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 00007f4f2ead7493 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe7c4ac4df R14: 00007f4f2f7c9300 R15: 0000000000022000 Memory state around the buggy address: ffffc9000c2ffd00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc9000c2ffd80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc9000c2ffe00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc9000c2ffe80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc9000c2fff00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ==================================================================