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: 7602 Comm: syz-executor.1 Not tainted 5.4.0-rc6+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:pmd_trans_huge_lock include/linux/huge_mm.h:219 [inline]
RIP: 0010:pagemap_pmd_range+0x78/0x1670 fs/proc/task_mmu.c:1373
Code: 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 4f 11 00 00 49 8d 7c 24 40 48 8b 59 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 21 11 00 00 4d 8b 7c 24 40 be 08 00 00 00 4d 8d
RSP: 0018:ffff888081057268 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888081057540 RCX: ffff888081057400
RDX: 0000000000000008 RSI: 0000000000511000 RDI: 0000000000000040
RBP: ffff8880810572d8 R08: 0000000000000000 R09: 0000000000511000
R10: ffffed1012df30bb R11: ffff888094951010 R12: 0000000000000000
R13: ffff888081057400 R14: ffff888094951010 R15: ffff888094951010
FS:  00007f43acdeb700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004de3b0 CR3: 0000000099ed7000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 walk_pmd_range mm/pagewalk.c:53 [inline]
 walk_pud_range mm/pagewalk.c:115 [inline]
 walk_p4d_range mm/pagewalk.c:147 [inline]
 walk_pgd_range mm/pagewalk.c:180 [inline]
 __walk_page_range+0xa68/0x1390 mm/pagewalk.c:275
 walk_page_range+0x16a/0x2d0 mm/pagewalk.c:363
 pagemap_read+0x369/0x570 fs/proc/task_mmu.c:1596
 do_loop_readv_writev fs/read_write.c:714 [inline]
 do_iter_read+0x366/0x560 fs/read_write.c:935
 vfs_readv+0xc7/0x130 fs/read_write.c:997
 kernel_readv fs/splice.c:359 [inline]
 default_file_splice_read+0x425/0x890 fs/splice.c:414
 do_splice_to+0xe3/0x120 fs/splice.c:877
 splice_direct_to_actor+0x296/0x870 fs/splice.c:955
 do_splice_direct+0x14c/0x270 fs/splice.c:1064
 do_sendfile+0x481/0xd10 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+0x198/0x1e0 fs/read_write.c:1511
 do_syscall_64+0xca/0x5d0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a219
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f43acdeac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045a219
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000100000206201 R11: 0000000000000246 R12: 00007f43acdeb6d4
R13: 00000000004c7f94 R14: 00000000004de3b0 R15: 00000000ffffffff
Modules linked in:
---[ end trace abf1f1291e9f70de ]---
RIP: 0010:pmd_trans_huge_lock include/linux/huge_mm.h:219 [inline]
RIP: 0010:pagemap_pmd_range+0x78/0x1670 fs/proc/task_mmu.c:1373
Code: 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 4f 11 00 00 49 8d 7c 24 40 48 8b 59 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 21 11 00 00 4d 8b 7c 24 40 be 08 00 00 00 4d 8d
RSP: 0018:ffff888081057268 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888081057540 RCX: ffff888081057400
RDX: 0000000000000008 RSI: 0000000000511000 RDI: 0000000000000040
RBP: ffff8880810572d8 R08: 0000000000000000 R09: 0000000000511000
R10: ffffed1012df30bb R11: ffff888094951010 R12: 0000000000000000
R13: ffff888081057400 R14: ffff888094951010 R15: ffff888094951010
FS:  00007f43acdeb700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004de3b0 CR3: 0000000099ed7000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400