loop1: detected capacity change from 256 to 0
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 11144 Comm: syz-executor.1 Not tainted 5.10.0-rc7-next-20201210-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:jffs2_parse_param+0x141/0x330 fs/jffs2/super.c:206
Code: 48 c1 ea 03 4d 63 fc 80 3c 02 00 0f 85 de 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 75 00 49 8d 7e 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c8 01 00 00 4d 8b 76 08 4c 89 ff 4c 89 f6 e8 d6
RSP: 0018:ffffc9001719fb78 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88801418f800 RCX: ffffc9000ad48000
RDX: 0000000000000001 RSI: ffffffff828c96f6 RDI: 0000000000000008
RBP: 1ffff92002e33f6f R08: 00000000003fffff R09: ffffffff828c96ba
R10: ffffffff828c96e4 R11: 0000000000000001 R12: 0000000001ad7400
R13: ffff888014596000 R14: 0000000000000000 R15: 0000000001ad7400
FS:  00007efbfd994700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000026caa98 CR3: 0000000018d49000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_parse_fs_param fs/fs_context.c:117 [inline]
 vfs_parse_fs_param+0x203/0x550 fs/fs_context.c:98
 vfs_parse_fs_string+0xe6/0x150 fs/fs_context.c:161
 generic_parse_monolithic+0x16f/0x1f0 fs/fs_context.c:201
 do_new_mount fs/namespace.c:2892 [inline]
 path_mount+0x1266/0x1e70 fs/namespace.c:3227
 do_mount fs/namespace.c:3240 [inline]
 __do_sys_mount fs/namespace.c:3448 [inline]
 __se_sys_mount fs/namespace.c:3425 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3425
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x460baa
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007efbfd993a78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007efbfd993b10 RCX: 0000000000460baa
RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007efbfd993ad0
RBP: 00007efbfd993ad0 R08: 00007efbfd993b10 R09: 0000000020000000
R10: 00000000010000c4 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000040 R14: 00000000200011c0 R15: 0000000020001240
Modules linked in:
---[ end trace 4f2192029190afd8 ]---
RIP: 0010:jffs2_parse_param+0x141/0x330 fs/jffs2/super.c:206
Code: 48 c1 ea 03 4d 63 fc 80 3c 02 00 0f 85 de 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 75 00 49 8d 7e 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c8 01 00 00 4d 8b 76 08 4c 89 ff 4c 89 f6 e8 d6
RSP: 0018:ffffc9001719fb78 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88801418f800 RCX: ffffc9000ad48000
RDX: 0000000000000001 RSI: ffffffff828c96f6 RDI: 0000000000000008
RBP: 1ffff92002e33f6f R08: 00000000003fffff R09: ffffffff828c96ba
R10: ffffffff828c96e4 R11: 0000000000000001 R12: 0000000001ad7400
R13: ffff888014596000 R14: 0000000000000000 R15: 0000000001ad7400
FS:  00007efbfd994700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000749138 CR3: 0000000018d49000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400