syzbot
BUG: Bad page map
Status:
auto-obsoleted due to no activity on 2024/10/03 11:06
Reported-by: syzbot+f371db205b68a6df7744@syzkaller.appspotmail.com
First crash: 769d, last: 769d
Sample crash report:
__swap_info_get: Bad swap file entry 4003ffffff7fffff
BUG: Bad page map in process syz.4.194 pte:8000000100000000 pmd:1159e2067
addr:00007f3eef201000 vm_flags:100400fb anon_vma:0000000000000000 mapping:ffff888109136e40 index:134
file:kcov fault:0x0 mmap:kcov_mmap readpage:0x0
CPU: 1 PID: 858 Comm: syz.4.194 Not tainted 5.15.150-syzkaller-00330-g9044d25b8ff5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
dump_stack+0x15/0x17 lib/dump_stack.c:113
print_bad_pte+0x575/0x590 mm/memory.c:619
zap_pte_range mm/memory.c:1489 [inline]
zap_pmd_range mm/memory.c:1559 [inline]
zap_pud_range mm/memory.c:1588 [inline]
zap_p4d_range mm/memory.c:1609 [inline]
unmap_page_range+0x15f0/0x1ed0 mm/memory.c:1630
unmap_single_vma mm/memory.c:1675 [inline]
unmap_vmas+0x389/0x560 mm/memory.c:1707
exit_mmap+0x3e4/0x940 mm/mmap.c:3215
__mmput+0x95/0x310 kernel/fork.c:1179
mmput+0x5b/0x170 kernel/fork.c:1202
exit_mm kernel/exit.c:552 [inline]
do_exit+0xb9c/0x2ca0 kernel/exit.c:865
do_group_exit+0x141/0x310 kernel/exit.c:1000
__do_sys_exit_group kernel/exit.c:1011 [inline]
__se_sys_exit_group kernel/exit.c:1009 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1009
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f3eefa45bd9
Code: Unable to access opcode bytes at RIP 0x7f3eefa45baf.
RSP: 002b:00007ffc853382d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007ffc853383d0 RCX: 00007f3eefa45bd9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 000000098533840f R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
BUG: Bad rss-counter state mm:ffff888125e10a80 type:MM_FILEPAGES val:1
BUG: Bad rss-counter state mm:ffff888125e10a80 type:MM_SWAPENTS val:-1
Struck through repros no longer work on HEAD.