kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 21476 Comm: syz-executor.0 Not tainted 5.4.101-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:bdev_read_page+0x37/0x190 fs/block_dev.c:703 Code: 10 49 89 d5 48 89 74 24 08 49 89 fc 49 bf 00 00 00 00 00 fc ff df e8 58 9c be ff 49 8d 9c 24 80 00 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 da 5f ed ff bd c0 04 00 00 48 03 RSP: 0018:ffff8881e19570d8 EFLAGS: 00010202 RAX: 0000000000000010 RBX: 0000000000000080 RCX: 0000000000040000 RDX: ffffc900003f8000 RSI: 0000000000000808 RDI: 0000000000000809 RBP: ffff8881e19572f0 R08: ffffffff81a797ff R09: fffff94000f3bfa1 R10: fffff94000f3bfa1 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea00079dfd00 R14: 0000000000000014 R15: dffffc0000000000 FS: 00007f6204d0f700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000056c000 CR3: 00000001ee54a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_mpage_readpage+0x1378/0x1a90 fs/mpage.c:338 mpage_readpages+0x385/0x500 fs/mpage.c:440 read_pages+0x118/0x400 mm/readahead.c:126 __do_page_cache_readahead+0x470/0x510 mm/readahead.c:212 generic_file_buffered_read mm/filemap.c:2051 [inline] generic_file_read_iter+0x676/0x2120 mm/filemap.c:2324 call_read_iter include/linux/fs.h:1965 [inline] generic_file_splice_read+0x478/0x770 fs/splice.c:307 do_splice_to fs/splice.c:877 [inline] splice_direct_to_actor+0x3f1/0xb30 fs/splice.c:955 do_splice_direct+0x28b/0x3e0 fs/splice.c:1064 do_sendfile+0x8e4/0x1140 fs/read_write.c:1464 __do_sys_sendfile64 fs/read_write.c:1525 [inline] __se_sys_sendfile64 fs/read_write.c:1511 [inline] __x64_sys_sendfile64+0x1c4/0x220 fs/read_write.c:1511 do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x465ef9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6204d0f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465ef9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 00000000004bcd1c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000024002da8 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffce1c3ebef R14: 00007f6204d0f300 R15: 0000000000022000 Modules linked in: ---[ end trace 2a61e3a57188529f ]--- RIP: 0010:bdev_read_page+0x37/0x190 fs/block_dev.c:703 Code: 10 49 89 d5 48 89 74 24 08 49 89 fc 49 bf 00 00 00 00 00 fc ff df e8 58 9c be ff 49 8d 9c 24 80 00 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 da 5f ed ff bd c0 04 00 00 48 03 RSP: 0018:ffff8881e19570d8 EFLAGS: 00010202 RAX: 0000000000000010 RBX: 0000000000000080 RCX: 0000000000040000 RDX: ffffc900003f8000 RSI: 0000000000000808 RDI: 0000000000000809 RBP: ffff8881e19572f0 R08: ffffffff81a797ff R09: fffff94000f3bfa1 R10: fffff94000f3bfa1 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea00079dfd00 R14: 0000000000000014 R15: dffffc0000000000 FS: 00007f6204d0f700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000053e038 CR3: 00000001ee54a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400