general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 PID: 6843 Comm: syz-executor095 Not tainted 5.9.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:jffs2_parse_param+0x1bf/0x300 fs/jffs2/super.c:206 Code: 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 06 92 2e ff 49 63 c5 48 89 04 24 49 8b 2e 48 83 c5 08 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 e2 91 2e ff 4c 8b 7d 00 4c 89 ff RSP: 0018:ffffc900055c7d38 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff888096d6c800 RCX: 0000000000000003 RDX: ffff888090aaa240 RSI: 0000000000000000 RDI: 00000000003fffff RBP: 0000000000000008 R08: ffffffff82864fa9 R09: ffffffff82864f6e R10: 0000000000000002 R11: ffff888090aaa240 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff888090a22000 R15: 1ffff92000ab8fbc FS: 00000000007af880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffce6a39000 CR3: 000000009df34000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vfs_parse_fs_param+0x1e5/0x460 fs/fs_context.c:117 vfs_parse_fs_string fs/fs_context.c:161 [inline] generic_parse_monolithic+0x230/0x350 fs/fs_context.c:201 do_new_mount fs/namespace.c:2871 [inline] path_mount+0x176c/0x29e0 fs/namespace.c:3192 do_mount fs/namespace.c:3205 [inline] __do_sys_mount fs/namespace.c:3413 [inline] __se_sys_mount+0x126/0x180 fs/namespace.c:3390 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x44699a Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d ae 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 5a ae fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007ffce6a37ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffce6a38040 RCX: 000000000044699a RDX: 0000000020001300 RSI: 0000000020001340 RDI: 0000000000000000 RBP: 0000000000000000 R08: 00007ffce6a38040 R09: 0000000000000014 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401c80 R13: 0000000000401d10 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace c6758d4f38932c6a ]--- RIP: 0010:jffs2_parse_param+0x1bf/0x300 fs/jffs2/super.c:206 Code: 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 06 92 2e ff 49 63 c5 48 89 04 24 49 8b 2e 48 83 c5 08 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 e2 91 2e ff 4c 8b 7d 00 4c 89 ff RSP: 0018:ffffc900055c7d38 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff888096d6c800 RCX: 0000000000000003 RDX: ffff888090aaa240 RSI: 0000000000000000 RDI: 00000000003fffff RBP: 0000000000000008 R08: ffffffff82864fa9 R09: ffffffff82864f6e R10: 0000000000000002 R11: ffff888090aaa240 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff888090a22000 R15: 1ffff92000ab8fbc FS: 00000000007af880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000565098bdd668 CR3: 000000009df34000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400