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FreeBSD kernel bugs discovered by syzkaller fuzzer.

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12/29/25

panic: failed to r[e ctlhairmea mde pmoidr y8 t

Hello, syzbot found the following issue on: HEAD commit: a3394b6a23fb m4: avoid warnings about too-

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panic: failed to r[e ctlhairmea mde pmoidr y8 t

Hello, syzbot found the following issue on: HEAD commit: a3394b6a23fb m4: avoid warnings about too-

12/29/25

12/26/25

freebsd build error (23)

Hello, syzbot found the following issue on: HEAD commit: 350f31973189 kyua: Make "debug -p"

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freebsd build error (23)

Hello, syzbot found the following issue on: HEAD commit: 350f31973189 kyua: Make "debug -p"

12/26/25

12/24/25

Fatal trap NUM: page fault in in6_selecthlim (5)

Hello, syzbot found the following issue on: HEAD commit: 8d5a11cd0137 src.conf: Add

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Fatal trap NUM: page fault in in6_selecthlim (5)

Hello, syzbot found the following issue on: HEAD commit: 8d5a11cd0137 src.conf: Add

12/24/25

12/22/25

panic: MNT_DEFERRED requires MNT_RECURSE | MNT_FORCE

syzbot has found a reproducer for the following issue on: HEAD commit: 95788a851deb vm_fault_trap():

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panic: MNT_DEFERRED requires MNT_RECURSE | MNT_FORCE

syzbot has found a reproducer for the following issue on: HEAD commit: 95788a851deb vm_fault_trap():

12/22/25

12/21/25

panic: Assertion uio->uio_resid < NUM failed at /syzkaller/managers/i386/kernel/sys/netlink/netlink_domain.c:LINE

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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panic: Assertion uio->uio_resid < NUM failed at /syzkaller/managers/i386/kernel/sys/netlink/netlink_domain.c:LINE

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/21/25

12/20/25

freebsd build error (22)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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freebsd build error (22)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/20/25

12/20/25

Fatal trap NUM: page fault in inm_disconnect

Hello, syzbot found the following issue on: HEAD commit: 7f39d05b67ae reboot: Fix halt -p behavior

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Fatal trap NUM: page fault in inm_disconnect

Hello, syzbot found the following issue on: HEAD commit: 7f39d05b67ae reboot: Fix halt -p behavior

12/20/25

12/20/25

panic: igmp_change_state: no igmp_ifsoftc for ifp ADDR (2)

Hello, syzbot found the following issue on: HEAD commit: 7f39d05b67ae reboot: Fix halt -p behavior

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panic: igmp_change_state: no igmp_ifsoftc for ifp ADDR (2)

Hello, syzbot found the following issue on: HEAD commit: 7f39d05b67ae reboot: Fix halt -p behavior

12/20/25

12/20/25

Fatal trap NUM: page fault in pfi_kkif_update (4)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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Fatal trap NUM: page fault in pfi_kkif_update (4)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/20/25

12/20/25

panic: deadlkres: possible deadlock detected on allproc_lock

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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panic: deadlkres: possible deadlock detected on allproc_lock

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/20/25

12/18/25

syzkaller: testing failed: failed to run ["go" "test" "-short" "./..."]: exit status 1 (13)

Hello, syzbot found the following issue on: HEAD commit: git tree: https://github.com/google/

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syzkaller: testing failed: failed to run ["go" "test" "-short" "./..."]: exit status 1 (13)

Hello, syzbot found the following issue on: HEAD commit: git tree: https://github.com/google/

12/18/25

12/16/25

panic: /syzkaller/managers/i386/kernel/sys/kern/kern_timeout.c:LINE: callout_cc_add: Bad list head ADDR first->prev != h (2)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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panic: /syzkaller/managers/i386/kernel/sys/kern/kern_timeout.c:LINE: callout_cc_add: Bad list head ADDR first->prev != h (2)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/16/25

12/15/25

panic: CURVNET_SET at /syzkaller/managers/main/kernel/sys/netinet6/in6_mcast.c:LINE inp_gcmoptions() curvnet=ADDR vnet=N

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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panic: CURVNET_SET at /syzkaller/managers/main/kernel/sys/netinet6/in6_mcast.c:LINE inp_gcmoptions() curvnet=ADDR vnet=N

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/15/25

12/15/25

panic: igmp_change_state: no igmp_ifsoftc for ifp ADDR

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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panic: igmp_change_state: no igmp_ifsoftc for ifp ADDR

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/15/25

12/10/25

panic: proc_dtor: non-empty p_ktr (2)

syzbot has found a reproducer for the following issue on: HEAD commit: cc1e4aae5a67 rc.d/ipfilter:

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panic: proc_dtor: non-empty p_ktr (2)

syzbot has found a reproducer for the following issue on: HEAD commit: cc1e4aae5a67 rc.d/ipfilter:

12/10/25

12/9/25

syzkaller: testing failed: failed to run ["go" "test" "-short" "./..."]: exit status 1 (12)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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syzkaller: testing failed: failed to run ["go" "test" "-short" "./..."]: exit status 1 (12)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/9/25

12/8/25

Fatal trap NUM: page fault in igmp_ifdetach

Hello, syzbot found the following issue on: HEAD commit: cff67bc43df1 vm_fault: only rely on PG_ZERO

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Fatal trap NUM: page fault in igmp_ifdetach

Hello, syzbot found the following issue on: HEAD commit: cff67bc43df1 vm_fault: only rely on PG_ZERO

12/8/25

12/8/25

panic: witness_warn (4)

Hello, syzbot found the following issue on: HEAD commit: 3f10e5985044 ip6: Add explicit lock order

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panic: witness_warn (4)

Hello, syzbot found the following issue on: HEAD commit: 3f10e5985044 ip6: Add explicit lock order

12/8/25

12/7/25

panic: inconsistent boundary count NUM

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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panic: inconsistent boundary count NUM

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/7/25

12/6/25

SYZFAIL: tun: read failed (4)

Hello, syzbot found the following issue on: HEAD commit: ced74610217f freebsd-update: Mention

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SYZFAIL: tun: read failed (4)

Hello, syzbot found the following issue on: HEAD commit: ced74610217f freebsd-update: Mention

12/6/25

12/5/25

Fatal trap NUM: page fault in in_pcbremhash_locked (2)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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Fatal trap NUM: page fault in in_pcbremhash_locked (2)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12/5/25

11/28/25

Fatal trap NUM: page fault in ip6_freemoptions

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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Fatal trap NUM: page fault in ip6_freemoptions

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

11/28/25

11/26/25

panic: flush_newblk_dep: Bad newblk ADDR

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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panic: flush_newblk_dep: Bad newblk ADDR

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

11/26/25

11/24/25

panic: vm_page_grab_zero_partial: page ADDR is invalid

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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panic: vm_page_grab_zero_partial: page ADDR is invalid

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

11/24/25

11/21/25

Fatal trap NUM: page fault in in_joingroup_locked

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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Fatal trap NUM: page fault in in_joingroup_locked

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

11/21/25

11/10/25

SYZFAIL: failed to mkdir

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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SYZFAIL: failed to mkdir

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

11/10/25

11/6/25

freebsd test error: panic: _proc_set_cred: ref NUM not NUM on cred ADDR

Hello, syzbot found the following issue on: HEAD commit: 2a8a6179eb6c etc/mtree/BSD.include.dist:

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freebsd test error: panic: _proc_set_cred: ref NUM not NUM on cred ADDR

Hello, syzbot found the following issue on: HEAD commit: 2a8a6179eb6c etc/mtree/BSD.include.dist:

11/6/25

11/4/25

SYZFAIL: failed to recv rpc

syzbot has found a reproducer for the following issue on: HEAD commit: 8234c1899b30 release: Make

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SYZFAIL: failed to recv rpc

syzbot has found a reproducer for the following issue on: HEAD commit: 8234c1899b30 release: Make

11/4/25

11/4/25

panic: /syzkaller/managers/main/kernel/sys/kern/kern_timeout.c:LINE: _callout_stop_safe: Bad link elm ADDR prev->next != (2)

Hello, syzbot found the following issue on: HEAD commit: 8234c1899b30 release: Make fetch happen in

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panic: /syzkaller/managers/main/kernel/sys/kern/kern_timeout.c:LINE: _callout_stop_safe: Bad link elm ADDR prev->next != (2)

Hello, syzbot found the following issue on: HEAD commit: 8234c1899b30 release: Make fetch happen in

11/4/25

10/31/25

panic: vm_page_free_prep: freeing mapped page ADDR (2)

Hello, syzbot found the following issue on: HEAD commit: 0837b2ebd570 pkg: Die if make -V BRANCH

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panic: vm_page_free_prep: freeing mapped page ADDR (2)

Hello, syzbot found the following issue on: HEAD commit: 0837b2ebd570 pkg: Die if make -V BRANCH

10/31/25

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