From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6A831BA3D for ; Fri, 24 Oct 2025 09:32:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761298325; cv=none; b=rhCX5ESxLhAg0a3lQov97ew5CLnMXVguMqabz7K9OvUisI8r0WdjGvXgC2WaJkgrZFC4VJcr0H65CZrwhySt6/4gI/HN2OwAV5SagVp9+rnhZ7zg0E52wwilibNaQMDY1Nlc7hZR6yBmuPY0X0yLfkpKrW0MW86d9WNxuTm3nEw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761298325; c=relaxed/simple; bh=QLhAbdrCeDcyaMr1aqTHEVEP3A4YPLLsN05MXMLvl58=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=fXl9X5nK82fXDI+gLFysM0x6c8yEo51xwH8S+oC/Uz3bp4uClAVF5nZl9aiOJBNYbxYUDowj9GnQ+dNrUNpsY/hf395DJKjR8CfNW/I4wGQzNPXzWzgphHoNqOm1Ls76F2457QnONj/VLcBR9VYzcmCCm2tJQhrkUk78pyrxrb0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.197 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f197.google.com with SMTP id e9e14a558f8ab-430db5635d6so24136245ab.3 for ; Fri, 24 Oct 2025 02:32:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761298322; x=1761903122; h=content-transfer-encoding:to:from:subject:message-id:in-reply-to :date:mime-version:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=f33cBqIbs1P/bvUtVFAzZtw/lSm851N0Pyx3c4vUn+k=; b=Yu/zE2NFE55oshJtkeHQwjNInL+OoVr3NAX09dw1hal+Nv7MUTW4lUWRF9bfcK9bHw scKj3sKrgh/0vYK3D4tLRfcfZpiZ5Z8z5/hhC0G8Gf2uvSajk3wt6kjyOIEVfVLZy31d i23BxhoMwDFTSd5eYyCqi0yLKX6Ey+Vb1gnZNZC/QSNobLmeU5jssCqb7lVTz4vZYa1w nMbTHl019vmkctHCaU4dgWdDAIP7mQ2E6D088tBrpMvxGzjrw0d05/gX/PDBU00Jp+gR +62NNpsQSHvXddd2C4Hlcul9oM90yXD3t/60HOrbNz0tzBK5zxF6/d5mTPDFaG34kDyd W5cg== X-Forwarded-Encrypted: i=1; AJvYcCXKfNkY1VOHSCcK81wbt7JENK5MUgwlGaArzSNAqovzknV1Tz50HrFwqmTn8lxSgSYxAm2lpes6i3C+Wf8=@vger.kernel.org X-Gm-Message-State: AOJu0YzKLWTKJhG33t9FpKKomC/1TmUJohQr+VrWUdC8whnY2yDQLFMd U3Oi/Eng6J73gUz2SBYau9T6QUCXRZDERPvyJFA9AIr931qvhdGiRNQeEDnHn0m1Ml2ojwBhrrQ /zmGX0EZe/sAuVHhA0dSE6pHWSt63YknbvZkJhGKaHM/gZ2NnB20Xtlc2kRI= X-Google-Smtp-Source: AGHT+IH+IK/Cj/eDem1DfATPVYIc5ycn0k8BTP/mBCXOj2uBmgQoXBv/JkcTwaBguLY2vvD4Ks8i2djh2qlP5/rFrrnGWIoOqoYB Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:380f:b0:42e:72ee:cde6 with SMTP id e9e14a558f8ab-430c525f609mr435312935ab.12.1761298322466; Fri, 24 Oct 2025 02:32:02 -0700 (PDT) Date: Fri, 24 Oct 2025 02:32:02 -0700 In-Reply-To: <20251024071154.COzwR%dmantipov@yandex.ru> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68fb4792.050a0220.346f24.00b8.GAE@google.com> Subject: Re: [syzbot] [ocfs2?] kernel BUG in ocfs2_set_new_buffer_uptodate (2) From: syzbot To: dmantipov@yandex.ru, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: ace will be fragmented on layer2 which could impact the performance. Settin= g the MTU to 1560 would solve the problem. [ 47.395182][ T5971] batman_adv: batadv0: Not using interface batadv_slav= e_1 (retrying later): interface not active [ 47.416728][ T5971] device hsr_slave_0 entered promiscuous mode [ 47.423245][ T5971] device hsr_slave_1 entered promiscuous mode [ 47.471639][ T5971] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 47.480389][ T5971] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 47.489086][ T5971] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 47.497565][ T5971] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 47.513466][ T5971] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 47.520632][ T5971] bridge0: port 2(bridge_slave_1) entered forwarding s= tate [ 47.528003][ T5971] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 47.535131][ T5971] bridge0: port 1(bridge_slave_0) entered forwarding s= tate [ 47.561198][ T5971] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.573567][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes r= eady [ 47.582072][ T43] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 47.589977][ T43] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 47.597565][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes r= eady [ 47.607679][ T5971] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.616985][ T677] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link = becomes ready [ 47.625385][ T677] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 47.632487][ T677] bridge0: port 1(bridge_slave_0) entered forwarding s= tate [ 47.642855][ T677] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link = becomes ready [ 47.651418][ T677] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 47.658498][ T677] bridge0: port 2(bridge_slave_1) entered forwarding s= tate [ 47.672523][ T677] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link be= comes ready [ 47.681721][ T677] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes r= eady [ 47.691754][ T786] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link be= comes ready [ 47.702417][ T786] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link bec= omes ready [ 47.713153][ T786] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link bec= omes ready [ 47.723012][ T5971] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes re= ady [ 47.769360][ T786] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes = ready [ 47.776980][ T786] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes = ready [ 47.788069][ T5971] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 47.802087][ T786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link= becomes ready [ 47.817286][ T786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link beco= mes ready [ 47.825559][ T786] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes r= eady [ 47.833747][ T786] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes r= eady [ 47.843065][ T5971] device veth0_vlan entered promiscuous mode [ 47.853007][ T5971] device veth1_vlan entered promiscuous mode [ 47.868131][ T608] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link become= s ready [ 47.876210][ T608] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link become= s ready [ 47.884528][ T608] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link b= ecomes ready [ 47.894414][ T5971] device veth0_macvtap entered promiscuous mode [ 47.903703][ T5971] device veth1_macvtap entered promiscuous mode [ 47.916303][ T5971] batman_adv: batadv0: Interface activated: batadv_sla= ve_0 [ 47.924143][ T677] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link= becomes ready [ 47.932868][ T677] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link become= s ready [ 47.943246][ T5971] batman_adv: batadv0: Interface activated: batadv_sla= ve_1 [ 47.950987][ T677] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link= becomes ready [ 47.961028][ T5971] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 47.969989][ T5971] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 47.978838][ T5971] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 47.987799][ T5971] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 48.035897][ C1] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ 48.045345][ C1] UBSAN: signed-integer-overflow in ./arch/x86/include= /asm/atomic.h:165:11 [ 48.053952][ C1] 1251854394 + 1856889025 cannot be represented in typ= e 'int' [ 48.061418][ C1] CPU: 1 PID: 5984 Comm: modprobe Not tainted syzkalle= r #0 [ 48.068591][ C1] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 10/02/2025 [ 48.078727][ C1] Call Trace: [ 48.081999][ C1] [ 48.084847][ C1] dump_stack+0xfd/0x16e [ 48.089084][ C1] ubsan_epilogue+0xa/0x30 [ 48.093473][ C1] handle_overflow+0x192/0x1b0 [ 48.098230][ C1] ? prandom_u32+0x1d/0x1f0 [ 48.102709][ C1] ip_idents_reserve+0x14a/0x170 [ 48.107672][ C1] __ip_select_ident+0xe4/0x1c0 [ 48.112497][ C1] iptunnel_xmit+0x466/0x7b0 [ 48.117065][ C1] udp_tunnel_xmit_skb+0x1ba/0x290 [ 48.122153][ C1] geneve_xmit+0x1d05/0x2140 [ 48.126729][ C1] dev_hard_start_xmit+0x294/0x780 [ 48.132192][ C1] __dev_queue_xmit+0x1678/0x28b0 [ 48.137274][ C1] ip6_finish_output2+0x1020/0x1490 [ 48.142557][ C1] NF_HOOK+0x45/0x2c0 [ 48.146551][ C1] ? NF_HOOK+0x2c0/0x2c0 [ 48.150889][ C1] mld_sendpack+0x5f9/0xa70 [ 48.155387][ C1] mld_ifc_timer_expire+0x7e1/0x990 [ 48.160579][ C1] ? lock_acquire+0x78/0x310 [ 48.165155][ C1] ? lock_release+0x69/0x610 [ 48.169820][ C1] ? debug_object_deactivate+0x9b/0x250 [ 48.175350][ C1] ? mld_gq_timer_expire+0xe0/0xe0 [ 48.180456][ C1] call_timer_fn+0x105/0x440 [ 48.185031][ C1] ? mld_gq_timer_expire+0xe0/0xe0 [ 48.190128][ C1] __run_timers+0x5d8/0x7a0 [ 48.194970][ C1] ? __do_softirq+0x164/0x8ae [ 48.199635][ C1] run_timer_softirq+0x19/0x30 [ 48.204496][ C1] __do_softirq+0x23c/0x8ae [ 48.208985][ C1] ? asm_call_irq_on_stack+0xf/0x20 [ 48.214251][ C1] asm_call_irq_on_stack+0xf/0x20 [ 48.219386][ C1] [ 48.222309][ C1] do_softirq_own_stack+0x6d/0xb0 [ 48.227317][ C1] __irq_exit_rcu+0x1e1/0x1f0 [ 48.231975][ C1] irq_exit_rcu+0x5/0x20 [ 48.236201][ C1] sysvec_apic_timer_interrupt+0x9d/0xb0 [ 48.241991][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 48.247952][ C1] RIP: 0010:xas_next_entry+0x96/0x3d0 [ 48.253418][ C1] Code: b6 04 18 84 c0 0f 85 19 03 00 00 41 0f b6 2c 2= 4 31 ff 89 ee e8 1b 31 de ff 85 ed 0f 85 f5 02 00 00 4c 89 64 24 18 49 8d 4= f 12 <48> 89 0c 24 48 c1 e9 03 48 89 4c 24 20 0f b6 04 19 84 c0 0f 85 fc [ 48.273552][ C1] RSP: 0000:ffffc900018ffc60 EFLAGS: 00000246 [ 48.279869][ C1] RAX: ffffffff81918485 RBX: dffffc0000000000 RCX: fff= fc900018ffd2a [ 48.287824][ C1] RDX: ffff888021f18000 RSI: 0000000000000000 RDI: 000= 0000000000000 [ 48.295956][ C1] RBP: 0000000000000000 R08: dffffc0000000000 R09: fff= ff940000ad161 [ 48.304003][ C1] R10: fffff940000ad161 R11: 1ffffd40000ad160 R12: fff= f8880245a3180 [ 48.312223][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: fff= fc900018ffd18 [ 48.320216][ C1] ? xas_next_entry+0x85/0x3d0 [ 48.324967][ C1] ? unlock_page+0x17c/0x210 [ 48.329645][ C1] filemap_map_pages+0x5fe/0xa30 [ 48.334573][ C1] handle_mm_fault+0x16b8/0x2930 [ 48.339498][ C1] do_user_addr_fault+0x468/0xa50 [ 48.344635][ C1] ? asm_exc_page_fault+0x8/0x30 [ 48.349551][ C1] exc_page_fault+0x67/0x100 [ 48.354134][ C1] asm_exc_page_fault+0x1e/0x30 [ 48.359062][ C1] RIP: 0033:0x7f8f0a2e0a55 [ 48.363612][ C1] Code: d2 39 c1 0f 8f 7c 00 00 00 2d 80 0f 00 00 0f 8= 6 a8 fc ff ff 45 31 c0 83 e8 60 0f 8f 8d 00 00 00 0f 1f 44 00 00 c5 fe 6f 0= 4 17 fd 74 0c 16 c5 85 74 d0 c5 ed df c9 c5 fd d7 c9 ff c1 75 28 83 [ 48.383203][ C1] RSP: 002b:00007ffe9e48a9e8 EFLAGS: 00010283 [ 48.389369][ C1] RAX: 00000000ffffffbf RBX: 0000560d57518000 RCX: 000= 00000000003f0 [ 48.397494][ C1] RDX: 0000000000000000 RSI: 00007f8f0a4003f0 RDI: 000= 07ffe9e48af9f [ 48.405577][ C1] RBP: 00007ffe9e48ab38 R08: 0000000000000000 R09: 000= 07f8f0a42fa60 [ 48.413539][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 000= 0000000000000 [ 48.421495][ C1] R13: 00007ffe9e48ab60 R14: 00007f8f0a460000 R15: 000= 0560d57519d98 [ 48.429493][ C1] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ 48.438917][ C1] Kernel panic - not syncing: UBSAN: panic_on_warn set= ... [ 48.446229][ C1] CPU: 1 PID: 5984 Comm: modprobe Not tainted syzkalle= r #0 [ 48.453574][ C1] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 10/02/2025 [ 48.463620][ C1] Call Trace: [ 48.466930][ C1] [ 48.469786][ C1] dump_stack+0xfd/0x16e [ 48.474260][ C1] panic+0x2f0/0x9c0 [ 48.478304][ C1] check_panic_on_warn+0x95/0xe0 [ 48.483324][ C1] handle_overflow+0x192/0x1b0 [ 48.488166][ C1] ? prandom_u32+0x1d/0x1f0 [ 48.492648][ C1] ip_idents_reserve+0x14a/0x170 [ 48.497566][ C1] __ip_select_ident+0xe4/0x1c0 [ 48.502403][ C1] iptunnel_xmit+0x466/0x7b0 [ 48.507007][ C1] udp_tunnel_xmit_skb+0x1ba/0x290 [ 48.512102][ C1] geneve_xmit+0x1d05/0x2140 [ 48.516699][ C1] dev_hard_start_xmit+0x294/0x780 [ 48.521904][ C1] __dev_queue_xmit+0x1678/0x28b0 [ 48.526917][ C1] ip6_finish_output2+0x1020/0x1490 [ 48.532265][ C1] NF_HOOK+0x45/0x2c0 [ 48.536362][ C1] ? NF_HOOK+0x2c0/0x2c0 [ 48.540600][ C1] mld_sendpack+0x5f9/0xa70 [ 48.545084][ C1] mld_ifc_timer_expire+0x7e1/0x990 [ 48.550256][ C1] ? lock_acquire+0x78/0x310 [ 48.554818][ C1] ? lock_release+0x69/0x610 [ 48.559386][ C1] ? debug_object_deactivate+0x9b/0x250 [ 48.564916][ C1] ? mld_gq_timer_expire+0xe0/0xe0 [ 48.570159][ C1] call_timer_fn+0x105/0x440 [ 48.574730][ C1] ? mld_gq_timer_expire+0xe0/0xe0 [ 48.580362][ C1] __run_timers+0x5d8/0x7a0 [ 48.584876][ C1] ? __do_softirq+0x164/0x8ae [ 48.589741][ C1] run_timer_softirq+0x19/0x30 [ 48.594575][ C1] __do_softirq+0x23c/0x8ae [ 48.599107][ C1] ? asm_call_irq_on_stack+0xf/0x20 [ 48.604286][ C1] asm_call_irq_on_stack+0xf/0x20 [ 48.609288][ C1] [ 48.612210][ C1] do_softirq_own_stack+0x6d/0xb0 [ 48.617294][ C1] __irq_exit_rcu+0x1e1/0x1f0 [ 48.621954][ C1] irq_exit_rcu+0x5/0x20 [ 48.626175][ C1] sysvec_apic_timer_interrupt+0x9d/0xb0 [ 48.631799][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 48.637759][ C1] RIP: 0010:xas_next_entry+0x96/0x3d0 [ 48.643107][ C1] Code: b6 04 18 84 c0 0f 85 19 03 00 00 41 0f b6 2c 2= 4 31 ff 89 ee e8 1b 31 de ff 85 ed 0f 85 f5 02 00 00 4c 89 64 24 18 49 8d 4= f 12 <48> 89 0c 24 48 c1 e9 03 48 89 4c 24 20 0f b6 04 19 84 c0 0f 85 fc [ 48.662984][ C1] RSP: 0000:ffffc900018ffc60 EFLAGS: 00000246 [ 48.669035][ C1] RAX: ffffffff81918485 RBX: dffffc0000000000 RCX: fff= fc900018ffd2a [ 48.677198][ C1] RDX: ffff888021f18000 RSI: 0000000000000000 RDI: 000= 0000000000000 [ 48.685542][ C1] RBP: 0000000000000000 R08: dffffc0000000000 R09: fff= ff940000ad161 [ 48.693603][ C1] R10: fffff940000ad161 R11: 1ffffd40000ad160 R12: fff= f8880245a3180 [ 48.701553][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: fff= fc900018ffd18 [ 48.709709][ C1] ? xas_next_entry+0x85/0x3d0 [ 48.714730][ C1] ? unlock_page+0x17c/0x210 [ 48.719314][ C1] filemap_map_pages+0x5fe/0xa30 [ 48.724318][ C1] handle_mm_fault+0x16b8/0x2930 [ 48.729240][ C1] do_user_addr_fault+0x468/0xa50 [ 48.734236][ C1] ? asm_exc_page_fault+0x8/0x30 [ 48.739360][ C1] exc_page_fault+0x67/0x100 [ 48.743925][ C1] asm_exc_page_fault+0x1e/0x30 [ 48.748752][ C1] RIP: 0033:0x7f8f0a2e0a55 [ 48.753345][ C1] Code: d2 39 c1 0f 8f 7c 00 00 00 2d 80 0f 00 00 0f 8= 6 a8 fc ff ff 45 31 c0 83 e8 60 0f 8f 8d 00 00 00 0f 1f 44 00 00 c5 fe 6f 0= 4 17 fd 74 0c 16 c5 85 74 d0 c5 ed df c9 c5 fd d7 c9 ff c1 75 28 83 [ 48.773588][ C1] RSP: 002b:00007ffe9e48a9e8 EFLAGS: 00010283 [ 48.779672][ C1] RAX: 00000000ffffffbf RBX: 0000560d57518000 RCX: 000= 00000000003f0 [ 48.787743][ C1] RDX: 0000000000000000 RSI: 00007f8f0a4003f0 RDI: 000= 07ffe9e48af9f [ 48.796300][ C1] RBP: 00007ffe9e48ab38 R08: 0000000000000000 R09: 000= 07f8f0a42fa60 [ 48.804330][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 000= 0000000000000 [ 48.812278][ C1] R13: 00007ffe9e48ab60 R14: 00007f8f0a460000 R15: 000= 0560d57519d98 [ 48.820381][ C1] Kernel Offset: disabled [ 48.824731][ C1] Rebooting in 86400 seconds.. syzkaller build log: go env (err=3D) AR=3D'ar' CC=3D'gcc' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_ENABLED=3D'1' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' CXX=3D'g++' GCCGO=3D'gccgo' GO111MODULE=3D'auto' GOAMD64=3D'v1' GOARCH=3D'amd64' GOAUTH=3D'netrc' GOBIN=3D'' GOCACHE=3D'/syzkaller/.cache/go-build' GOCACHEPROG=3D'' GODEBUG=3D'' GOENV=3D'/syzkaller/.config/go/env' GOEXE=3D'' GOEXPERIMENT=3D'' GOFIPS140=3D'off' GOFLAGS=3D'' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build3457238269=3D/tmp/go-build -gno-record-gc= c-switches' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMOD=3D'/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.= mod' GOMODCACHE=3D'/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs-2/linux/gopath' GOPRIVATE=3D'' GOPROXY=3D'https://proxy.golang.org,direct' GOROOT=3D'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTELEMETRY=3D'local' GOTELEMETRYDIR=3D'/syzkaller/.config/go/telemetry' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.24.4' GOWORK=3D'' PKG_CONFIG=3D'pkg-config' git status (err=3D) HEAD detached at e2beed91937 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env go list -f '{{.Stale}}' -ldflags=3D"-s -w -X github.com/google/syzkaller/pr= og.GitRevision=3De2beed91937c0ace342f19a2e9afb67adb3a828a -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20250911-084951" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3De2beed91937c0ace342f19a2e9afb67adb3a828a -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20250911-084951" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build -ldflags=3D"-s -w -X github.com/google= /syzkaller/prog.GitRevision=3De2beed91937c0ace342f19a2e9afb67adb3a828a -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20250911-084951" -o ./bi= n/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wfr= ame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-forma= t-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -= static-pie -std=3Dc++17 -I. -Iexecutor/_include -DGOOS_linux=3D1 -DGOARCH= _amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"e2beed91937c0ace342f19a2e9afb67adb= 3a828a\" /usr/bin/ld: /tmp/cciE1xKJ.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or linking ./tools/check-syzos.sh 2>/dev/null Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D166e93e2580000 Tested on: commit: d3d0b4e2 Linux 5.10.245 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linu= x.git linux-5.10.y kernel config: https://syzkaller.appspot.com/x/.config?x=3D39182a54870857e= b dashboard link: https://syzkaller.appspot.com/bug?extid=3D7aef76bdb53b83d62= a9e compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-= 1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D111d0be25800= 00