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: 0 PID: 28217 Comm: systemd-udevd Not tainted 5.4.87-syzkaller-00101-g47494776db44 #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 d8 a3 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 5a 5e ed ff bd c0 04 00 00 48 03 RSP: 0018:ffff8881bc297418 EFLAGS: 00010202 RAX: 0000000000000010 RBX: 0000000000000080 RCX: ffff8881ec464d80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8881bc297630 R08: ffffffff81a7680e R09: fffff94000dd6a69 R10: fffff94000dd6a69 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea0006eb5340 R14: dffffc0000000000 R15: dffffc0000000000 FS: 00007fea8844d8c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcea922868 CR3: 00000001e6ee0000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: do_mpage_readpage+0x1442/0x1b00 fs/mpage.c:338 mpage_readpages+0x395/0x510 fs/mpage.c:440 read_pages+0x117/0x400 mm/readahead.c:126 __do_page_cache_readahead+0x470/0x510 mm/readahead.c:212 force_page_cache_readahead mm/readahead.c:243 [inline] page_cache_sync_readahead+0x331/0x3c0 mm/readahead.c:522 generic_file_buffered_read mm/filemap.c:2051 [inline] generic_file_read_iter+0x5ce/0x20a0 mm/filemap.c:2324 call_read_iter include/linux/fs.h:1959 [inline] new_sync_read fs/read_write.c:414 [inline] __vfs_read+0x599/0x710 fs/read_write.c:427 vfs_read+0x166/0x380 fs/read_write.c:461 ksys_read+0x186/0x2b0 fs/read_write.c:587 do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fea87594210 Code: 73 01 c3 48 8b 0d 98 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d b9 c1 20 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 4e fc ff ff 48 89 04 24 RSP: 002b:00007ffd411653b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00005582237941e0 RCX: 00007fea87594210 RDX: 0000000000000040 RSI: 0000558223794208 RDI: 000000000000000f RBP: 0000558223793850 R08: 00007fea8757ebe8 R09: 0000000000000070 R10: 000000000000006d R11: 0000000000000246 R12: 0000000000870000 R13: 0000000000870040 R14: 00005582237938a0 R15: 0000000000000040 Modules linked in: ---[ end trace a837c7dedfdd96a6 ]--- 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 d8 a3 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 5a 5e ed ff bd c0 04 00 00 48 03 RSP: 0018:ffff8881bc297418 EFLAGS: 00010202 RAX: 0000000000000010 RBX: 0000000000000080 RCX: ffff8881ec464d80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8881bc297630 R08: ffffffff81a7680e R09: fffff94000dd6a69 R10: fffff94000dd6a69 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea0006eb5340 R14: dffffc0000000000 R15: dffffc0000000000 FS: 00007fea8844d8c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f25cea5b028 CR3: 00000001e6ee0000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600