syzbot


BUG: stack guard page was hit in addrconf_rs_timer

Status: internal: reported on 2026/03/14 07:11
Subsystems: net
[Documentation on labels]
Fix commit: bonding: prevent potential infinite loop in bond_header_parse()
Patched on: [ci-upstream-linux-next-kasan-gce-root ci-upstream-rust-kasan-gce], missing on: [ci-qemu-gce-upstream-auto ci-qemu-native-arm64-kvm ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-snapshot-upstream-root ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci-upstream-gce-leak ci-upstream-kasan-badwrites-root ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce-386-root ci-upstream-kmsan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce ci2-upstream-usb]
First crash: 4d13h, last: 4d13h

Sample crash report:
BUG: MAX_LOCK_DEPTH too low!
turning off the locking correctness validator.
depth: 48  max: 48!
48 locks held by syz.1.5197/24173:
 #0: ffffc90005727c00 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xd4/0x640 kernel/time/timer.c:1745
 #1: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #1: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #1: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: ndisc_send_skb+0x215/0x1670 net/ipv6/ndisc.c:482
 #2: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #2: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #2: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x126/0x550 net/ipv6/ip6_output.c:234
 #3: ffffffff8e75e480 (rcu_read_lock_bh){....}-{1:3}, at: local_bh_disable include/linux/bottom_half.h:20 [inline]
 #3: ffffffff8e75e480 (rcu_read_lock_bh){....}-{1:3}, at: rcu_read_lock_bh include/linux/rcupdate.h:903 [inline]
 #3: ffffffff8e75e480 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x28d/0x38d0 net/core/dev.c:4762
 #4: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #4: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #4: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: dev_queue_xmit_nit+0x2d/0xad0 net/core/dev.c:2555
 #5: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #5: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #5: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #6: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #6: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #6: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #7: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #7: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #7: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #8: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #8: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #8: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #9: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #9: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #9: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #10: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #10: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #10: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #11: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #11: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #11: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #12: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #12: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #12: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #13: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #13: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #13: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #14: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #14: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #14: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #15: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #15: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #15: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #16: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #16: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #16: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #17: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #17: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #17: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #18: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #18: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #18: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #19: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #19: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #19: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #20: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #20: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #20: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #21: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #21: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #21: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #22: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #22: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #22: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #23: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #23: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #23: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #24: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #24: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #24: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #25: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #25: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #25: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #26: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #26: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #26: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #27: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #27: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #27: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #28: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #28: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #28: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #29: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #29: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #29: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #30: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #30: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #30: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #31: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #31: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #31: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #32: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #32: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #32: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #33: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #33: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #33: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #34: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #34: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #34: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #35: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #35: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #35: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #36: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #36: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #36: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #37: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #37: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #37: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #38: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #38: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #38: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #39: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #39: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #39: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #40: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #40: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #40: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #41: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #41: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #41: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #42: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #42: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #42: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #43: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #43: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #43: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #44: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #44: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #44: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #45: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #45: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #45: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #46: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #46: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #46: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
 #47: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #47: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #47: ffffffff8e75e420 (rcu_read_lock){....}-{1:3}, at: bond_header_parse+0x4c/0x2e0 drivers/net/bonding/bond_main.c:1540
INFO: lockdep is turned off.
CPU: 1 UID: 0 PID: 24173 Comm: syz.1.5197 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 __lock_acquire+0x25e6/0x2cf0 kernel/locking/lockdep.c:5260
 lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868
 rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 bond_header_parse+0x68/0x2e0 drivers/net/bonding/bond_main.c:1540
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 dev_parse_header include/linux/netdevice.h:3449 [inline]
 packet_rcv+0x9ca/0x1720 net/packet/af_packet.c:2186
 dev_queue_xmit_nit+0xa39/0xad0 net/core/dev.c:2607
 xmit_one net/core/dev.c:3868 [inline]
 dev_hard_start_xmit+0x1cf/0x870 net/core/dev.c:3888
 __dev_queue_xmit+0x17a7/0x38d0 net/core/dev.c:4838
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip6_output+0x340/0x550 net/ipv6/ip6_output.c:246
 dst_output include/net/dst.h:470 [inline]
 NF_HOOK include/linux/netfilter.h:318 [inline]
 ndisc_send_skb+0xd0b/0x1670 net/ipv6/ndisc.c:512
 addrconf_rs_timer+0x395/0x6d0 net/ipv6/addrconf.c:4041
 call_timer_fn+0x192/0x640 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2373 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2385
 run_timer_base kernel/time/timer.c:2394 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2404
 handle_softirqs+0x22a/0x870 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1056
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0033:0x7f39fea507b0
Code: 74 28 48 85 c9 74 29 45 38 1c 10 75 23 83 c0 01 44 39 d0 75 dc 48 89 f0 25 ff 1f 00 00 49 89 34 c1 41 88 3c 00 31 c0 c3 66 90 <41> 38 3c 10 74 0b 41 88 3c 10 31 c0 49 89 34 d1 c3 b8 01 00 00 00
RSP: 002b:00007fff44b26d18 EFLAGS: 00000246
RAX: 00000000821e10a6 RBX: ffffffff821e10a6 RCX: ffffffff821e10a6
RDX: 00000000000010a6 RSI: ffffffff821e10a6 RDI: 0000000000000006
RBP: 0000000000000000 R08: 00007f39fee00000 R09: 00007f39fee02000
R10: 00000000821e10aa R11: 0000000000000006 R12: 00007f39fee16038
R13: 0000000000000430 R14: ffffffff821e10d1 R15: 00007f39ff945720
 </TASK>
BUG: TASK stack guard page was hit at ffffc9000571fff8 (stack is ffffc90005720000..ffffc90005728000)
Oops: stack guard page: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 24173 Comm: syz.1.5197 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:check_preemption_disabled+0x1/0xe0 lib/smp_processor_id.c:13
Code: a0 b4 27 8c 48 c7 c6 e0 b4 27 8c eb 1c 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 <41> 57 41 56 53 65 8b 05 57 d3 6c 07 65 8b 0d 4c d3 6c 07 f7 c1 ff
RSP: 0000:ffffc90005720000 EFLAGS: 00010203
RAX: 0000000000000001 RBX: ffffffff866a15ec RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffffffff8c27b4e0 RDI: ffffffff8c27b4a0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff866a15a0 R12: 0000000000000002
R13: ffffffff8e75e420 R14: 0000000000000000 R15: 0000000000000000
FS:  0000555556d3c500(0000) GS:ffff888125567000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000571fff8 CR3: 000000003033a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
 rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:752
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0x57/0x2e0 kernel/locking/lockdep.c:5831
 rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 bond_header_parse+0x68/0x2e0 drivers/net/bonding/bond_main.c:1540
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
 bond_header_parse+0x1b8/0x2e0 drivers/net/bonding/bond_main.c:1545
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 dev_parse_header include/linux/netdevice.h:3449 [inline]
 packet_rcv+0x9ca/0x1720 net/packet/af_packet.c:2186
 dev_queue_xmit_nit+0xa39/0xad0 net/core/dev.c:2607
 xmit_one net/core/dev.c:3868 [inline]
 dev_hard_start_xmit+0x1cf/0x870 net/core/dev.c:3888
 __dev_queue_xmit+0x17a7/0x38d0 net/core/dev.c:4838
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip6_output+0x340/0x550 net/ipv6/ip6_output.c:246
 dst_output include/net/dst.h:470 [inline]
 NF_HOOK include/linux/netfilter.h:318 [inline]
 ndisc_send_skb+0xd0b/0x1670 net/ipv6/ndisc.c:512
 addrconf_rs_timer+0x395/0x6d0 net/ipv6/addrconf.c:4041
 call_timer_fn+0x192/0x640 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2373 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2385
 run_timer_base kernel/time/timer.c:2394 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2404
 handle_softirqs+0x22a/0x870 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1056
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0033:0x7f39fea507b0
Code: 74 28 48 85 c9 74 29 45 38 1c 10 75 23 83 c0 01 44 39 d0 75 dc 48 89 f0 25 ff 1f 00 00 49 89 34 c1 41 88 3c 00 31 c0 c3 66 90 <41> 38 3c 10 74 0b 41 88 3c 10 31 c0 49 89 34 d1 c3 b8 01 00 00 00
RSP: 002b:00007fff44b26d18 EFLAGS: 00000246
RAX: 00000000821e10a6 RBX: ffffffff821e10a6 RCX: ffffffff821e10a6
RDX: 00000000000010a6 RSI: ffffffff821e10a6 RDI: 0000000000000006
RBP: 0000000000000000 R08: 00007f39fee00000 R09: 00007f39fee02000
R10: 00000000821e10aa R11: 0000000000000006 R12: 00007f39fee16038
R13: 0000000000000430 R14: ffffffff821e10d1 R15: 00007f39ff945720
----------------
Code disassembly (best guess), 4 bytes skipped:
   0:	48 c7 c6 e0 b4 27 8c 	mov    $0xffffffff8c27b4e0,%rsi
   7:	eb 1c                	jmp    0x25
   9:	66 66 66 2e 0f 1f 84 	data16 data16 cs nopw 0x0(%rax,%rax,1)
  10:	00 00 00 00 00
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	55                   	push   %rbp
* 26:	41 57                	push   %r15 <-- trapping instruction
  28:	41 56                	push   %r14
  2a:	53                   	push   %rbx
  2b:	65 8b 05 57 d3 6c 07 	mov    %gs:0x76cd357(%rip),%eax        # 0x76cd389
  32:	65 8b 0d 4c d3 6c 07 	mov    %gs:0x76cd34c(%rip),%ecx        # 0x76cd385
  39:	f7                   	.byte 0xf7
  3a:	c1                   	.byte 0xc1
  3b:	ff                   	.byte 0xff

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/14 07:10 net-next 9089c5f3c444 ee8d34d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: stack guard page was hit in addrconf_rs_timer
* Struck through repros no longer work on HEAD.