general protection fault, probably for non-canonical address 0xdffffc0000467899: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x000000000233c4c8-0x000000000233c4cf]
CPU: 1 PID: 1812 Comm: syz-executor.1 Not tainted 5.9.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:compound_head include/linux/page-flags.h:182 [inline]
RIP: 0010:PageSwapCache include/linux/page-flags.h:391 [inline]
RIP: 0010:free_swap_cache+0x28/0x300 mm/swap_state.c:325
Code: c3 90 41 57 41 56 41 55 41 54 49 89 fc 55 4d 8d 6c 24 08 53 e8 89 5e c6 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 85 02 00 00 4d 8b 74 24 08 31 ff 4c 89 e5 4c 89
RSP: 0018:ffffc9000927f6d0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888000184518 RCX: ffffffff81b019f2
RDX: 0000000000467899 RSI: ffffffff81afdfb7 RDI: 000000000233c4c0
RBP: 00000000000000a1 R08: 0000000000000000 R09: ffffea000233c487
R10: 00000000000001fe R11: 0000000000000000 R12: 000000000233c4c0
R13: 000000000233c4c8 R14: dffffc0000000000 R15: ffffc9000927fa80
FS: 0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000748d58 CR3: 00000000a05c4000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
free_pages_and_swap_cache+0x58/0x90 mm/swap_state.c:353
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:242 [inline]
tlb_flush_mmu+0xe9/0x6b0 mm/mmu_gather.c:249
zap_pte_range mm/memory.c:1159 [inline]
zap_pmd_range mm/memory.c:1197 [inline]
zap_pud_range mm/memory.c:1226 [inline]
zap_p4d_range mm/memory.c:1247 [inline]
unmap_page_range+0x1e97/0x2bf0 mm/memory.c:1268
unmap_single_vma+0x198/0x300 mm/memory.c:1313
unmap_vmas+0x168/0x2e0 mm/memory.c:1345
exit_mmap+0x2b1/0x530 mm/mmap.c:3183
__mmput+0x122/0x470 kernel/fork.c:1076
mmput+0x53/0x60 kernel/fork.c:1097
exit_mm kernel/exit.c:483 [inline]
do_exit+0xa8b/0x29f0 kernel/exit.c:793
do_group_exit+0x125/0x310 kernel/exit.c:903
get_signal+0x428/0x1f00 kernel/signal.c:2757
arch_do_signal+0x82/0x2520 arch/x86/kernel/signal.c:811
exit_to_user_mode_loop kernel/entry/common.c:161 [inline]
exit_to_user_mode_prepare+0x1ae/0x200 kernel/entry/common.c:192
syscall_exit_to_user_mode+0x7e/0x2e0 kernel/entry/common.c:267
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d5f9
Code: Bad RIP value.
RSP: 002b:00007f1b9241dcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000118cfe8 RCX: 000000000045d5f9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000118cfe8
RBP: 000000000118cfe0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cfec
R13: 000000000169fb6f R14: 00007f1b9241e9c0 R15: 000000000118cfec
Modules linked in:
---[ end trace ba252f16d0b46d75 ]---
RIP: 0010:compound_head include/linux/page-flags.h:182 [inline]
RIP: 0010:PageSwapCache include/linux/page-flags.h:391 [inline]
RIP: 0010:free_swap_cache+0x28/0x300 mm/swap_state.c:325
Code: c3 90 41 57 41 56 41 55 41 54 49 89 fc 55 4d 8d 6c 24 08 53 e8 89 5e c6 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 85 02 00 00 4d 8b 74 24 08 31 ff 4c 89 e5 4c 89
RSP: 0018:ffffc9000927f6d0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888000184518 RCX: ffffffff81b019f2
RDX: 0000000000467899 RSI: ffffffff81afdfb7 RDI: 000000000233c4c0
RBP: 00000000000000a1 R08: 0000000000000000 R09: ffffea000233c487
R10: 00000000000001fe R11: 0000000000000000 R12: 000000000233c4c0
R13: 000000000233c4c8 R14: dffffc0000000000 R15: ffffc9000927fa80
FS: 0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd0ac782000 CR3: 000000009f070000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400