F2FS-fs (loop5): Can't find valid F2FS filesystem in 2th superblock kernel msg: ebtables bug: please report to author: Unknown flag for inv bitmask ================================================================== BUG: KASAN: slab-out-of-bounds in __list_add_valid+0x8f/0xac lib/list_debug.c:26 Read of size 8 at addr ffff8801d9759420 by task syz-executor1/11518 CPU: 1 PID: 11518 Comm: syz-executor1 Not tainted 4.20.0-rc1+ #100 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 print_address_description.cold.7+0x9/0x1ff mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.8+0x242/0x309 mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 __list_add_valid+0x8f/0xac lib/list_debug.c:26 __list_add include/linux/list.h:60 [inline] list_add_tail include/linux/list.h:93 [inline] cma_listen_on_all drivers/infiniband/core/cma.c:2474 [inline] rdma_listen+0x6dc/0x990 drivers/infiniband/core/cma.c:3489 F2FS-fs (loop5): Magic Mismatch, valid(0xf2f52010) - read(0x0) ucma_listen+0x1a4/0x260 drivers/infiniband/core/ucma.c:1100 F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock ucma_write+0x365/0x460 drivers/infiniband/core/ucma.c:1689 __vfs_write+0x119/0x9f0 fs/read_write.c:485 F2FS-fs (loop5): Invalid log sectors per block(54) log sectorsize(9) vfs_write+0x1fc/0x560 fs/read_write.c:549 F2FS-fs (loop5): Can't find valid F2FS filesystem in 2th superblock ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4bb940ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000000000010 RSI: 0000000020000300 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4bb940f6d4 R13: 00000000004c5637 R14: 00000000004d9130 R15: 00000000ffffffff Allocated by task 11171: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 getname_flags+0xd0/0x590 fs/namei.c:140 getname+0x19/0x20 fs/namei.c:211 __do_sys_execve fs/exec.c:1964 [inline] __se_sys_execve fs/exec.c:1959 [inline] __x64_sys_execve+0x73/0xc0 fs/exec.c:1959 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 11171: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kmem_cache_free+0x83/0x290 mm/slab.c:3760 putname+0xf2/0x130 fs/namei.c:261 __do_execve_file.isra.33+0x1da2/0x25d0 fs/exec.c:1833 do_execveat_common fs/exec.c:1866 [inline] do_execve fs/exec.c:1883 [inline] __do_sys_execve fs/exec.c:1964 [inline] __se_sys_execve fs/exec.c:1959 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1959 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8801d9758300 which belongs to the cache names_cache of size 4096 The buggy address is located 288 bytes to the right of 4096-byte region [ffff8801d9758300, ffff8801d9759300) The buggy address belongs to the page: page:ffffea000765d600 count:1 mapcount:0 mapping:ffff8801da986e40 index:0x0 compound_mapcount: 0 flags: 0x2fffc0000010200(slab|head) raw: 02fffc0000010200 ffffea0006d8a608 ffffea0006eeb588 ffff8801da986e40 raw: 0000000000000000 ffff8801d9758300 0000000100000001 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801d9759300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801d9759380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8801d9759400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8801d9759480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801d9759500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================