Hu&V=Mn-Mlt}ANj2F./file0./file0 ./file0./file0 [ 961.6388633] ASan: Unauthorized Access In 0xffffffff80f7343c: Addr 0xffffd50012fbd440 [8 bytes, read, PoolUseAfterFree] [ 961.6488830] #0 0xffffffff80f7343c in knote [ 961.6589092] #1 0xffffffff8103063b in selnotify [ 961.6689176] #2 0xffffffff81028863 in pipeselwakeup [ 961.6689176] #3 0xffffffff81028b42 in pipeclose.part.0 [ 961.6789262] #4 0xffffffff81028de2 in pipe_close [ 961.6789262] #5 0xffffffff80f6a9d0 in closef [ 961.6889599] #6 0xffffffff80f6e695 in fd_free [ 961.6989662] #7 0xffffffff80f7bbac in exit1 [ 961.6989662] #8 0xffffffff80fb9a94 in sigexit [ 961.7089884] #9 0xffffffff80fba1d7 in sendsig [ 961.7089884] #10 0xffffffff80f8d608 in lwp_userret [ 961.7190091] #11 0xffffffff8026bbfd in syscall [ 961.7290300] ASan: Unauthorized Access In 0xffffffff80f7344c: Addr 0xffffd50012fbd4a0 [8 bytes, read, PoolUseAfterFree] [ 961.7390580] #0 0xffffffff80f7344c in knote [ 961.7390580] #1 0xffffffff8103063b in selnotify [ 961.7490728] #2 0xffffffff81028863 in pipeselwakeup [ 961.7590918] #3 0xffffffff81028b42 in pipeclose.part.0 [ 961.7590918] #4 0xffffffff81028de2 in pipe_close [ 961.7691192] #5 0xffffffff80f6a9d0 in closef [ 961.7791383] #6 0xffffffff80f6e695 in fd_free [ 961.7791383] #7 0xffffffff80f7bbac in exit1 [ 961.7891566] #8 0xffffffff80fb9a94 in sigexit [ 961.7891566] #9 0xffffffff80fba1d7 in sendsig [ 961.7991776] #10 0xffffffff80f8d608 in lwp_userret [ 961.8091993] #11 0xffffffff8026bbfd in syscall [ 961.8091993] panic: kernel diagnostic assertion "kn->kn_fop != NULL" failed: file "/syzkaller/managers/netbsd/kernel/sys/kern/kern_event.c", line 1653 [ 961.8292393] cpu1: Begin traceback... [ 961.8292393] vpanic() at netbsd:vpanic+0x214 [ 961.8392623] _GLOBAL__sub_D_65535_0_cpu_configure() at netbsd:_GLOBAL__sub_D_65535_0_cpu_configure [ 961.8593271] knote() at netbsd:knote+0x117 [ 961.8693364] selnotify() at netbsd:selnotify+0x30 [ 961.8793592] pipeselwakeup() at netbsd:pipeselwakeup+0x47 [ 961.8893770] pipeclose.part.0() at netbsd:pipeclose.part.0+0x8a [ 961.9094090] pipe_close() at netbsd:pipe_close+0x2b [ 961.9194445] closef() at netbsd:closef+0xf3 [ 961.9294621] fd_free() at netbsd:fd_free+0x174 [ 961.9394873] exit1() at netbsd:exit1+0x265 [ 961.9495082] sigexit() at netbsd:sigexit+0x33c [ 961.9495082] sendsig() at netbsd:sendsig [ 961.9595251] lwp_userret() at netbsd:lwp_userret+0x2db [ 961.9795651] syscall() at netbsd:syscall+0x42d [ 961.9795651] --- syscall (number 32) --- [ 961.9895762] 7e6f64a3e02a: [ 961.9895762] cpu1: End traceback... [ 961.9895762] dumping to dev 4,1 (offset=0, size=0): not possible [ 961.9996015] rebooting... SeaBIOS (version 1.8.2-20190322_093631-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f29c0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... >> NetBSD/x86 BIOS Boot, Revision 5.10 (Tue Jul 17 14:59:51 UTC 2018) (from NetBSD 8.0) >> Memory: 639/3144640 k 1. Boot normally 2. Boot single user 3. Disable ACPI 4. Disable ACPI and SMP 5. Drop to boot prompt