Decoded stacktrace for 6.14.0-1008-gcp: $ ./scripts/decode_stacktrace.sh /usr/lib/debug/boot/vmlinux-6.14.0-1008-gcp < ~/660\ 386885\ BUG\ kernel.txt [ 660.386885] BUG: kernel NULL pointer dereference, address: 0000000000000028 [ 660.394066] #PF: supervisor read access in kernel mode [ 660.394068] #PF: error_code(0x0000) - not-present page [ 660.394070] PGD 0 P4D 0 [ 660.394074] Oops: Oops: 0000 [#1] SMP NOPTI [ 660.394081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 660.394083] RIP: 0010:alloc_fs_context (fs/fs_context.c:294 (discriminator 1)) [ 660.394089] Code: 49 89 47 28 48 8b 82 80 0c 00 00 48 85 c0 74 0f c7 80 a8 00 00 00 00 00 00 00 f0 48 83 00 01 49 89 47 58 48 8b 82 e8 0c 00 00 <4c> 8b 70 28 b8 01 00 00 00 49 8d be 8c 00 00 00 f0 41 0f c1 86 8c All code ======== 0: 49 89 47 28 mov %rax,0x28(%r15) 4: 48 8b 82 80 0c 00 00 mov 0xc80(%rdx),%rax b: 48 85 c0 test %rax,%rax e: 74 0f je 0x1f 10: c7 80 a8 00 00 00 00 movl $0x0,0xa8(%rax) 17: 00 00 00 1a: f0 48 83 00 01 lock addq $0x1,(%rax) 1f: 49 89 47 58 mov %rax,0x58(%r15) 23: 48 8b 82 e8 0c 00 00 mov 0xce8(%rdx),%rax 2a:* 4c 8b 70 28 mov 0x28(%rax),%r14 <-- trapping instruction 2e: b8 01 00 00 00 mov $0x1,%eax 33: 49 8d be 8c 00 00 00 lea 0x8c(%r14),%rdi 3a: f0 lock 3b: 41 rex.B 3c: 0f .byte 0xf 3d: c1 .byte 0xc1 3e: 86 .byte 0x86 3f: 8c .byte 0x8c
Code starting with the faulting instruction =========================================== 0: 4c 8b 70 28 mov 0x28(%rax),%r14 4: b8 01 00 00 00 mov $0x1,%eax 9: 49 8d be 8c 00 00 00 lea 0x8c(%r14),%rdi 10: f0 lock 11: 41 rex.B 12: 0f .byte 0xf 13: c1 .byte 0xc1 14: 86 .byte 0x86 15: 8c .byte 0x8c [ 660.394092] RSP: 0018:ffffb53380a1fb08 EFLAGS: 00010202 [ 660.394094] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 660.394096] RDX: ffff8f864a01d300 RSI: 0000000000000000 RDI: 0000000000000000 [ 660.394097] RBP: ffffb53380a1fb38 R08: 0000000000000000 R09: 0000000000000000 [ 660.394099] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffa02ae940 [ 660.394100] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8f8647eded80 [ 660.394104] FS: 0000000000000000(0000) GS:ffff8f896fd80000(0000) knlGS:0000000000000000 [ 660.394106] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 660.394108] CR2: 0000000000000028 CR3: 000000005f440005 CR4: 0000000000370ef0 [ 660.394111] Call Trace: [ 660.394113] <TASK> [ 660.394117] fs_context_for_mount (fs/fs_context.c:334) [ 660.394121] vfs_kern_mount.part.0 (fs/namespace.c:1291) [ 660.394125] vfs_kern_mount (fs/namespace.c:1307) [ 660.394128] efivarfs_pm_notify (fs/efivarfs/super.c:529 (discriminator 1)) [ 660.394131] ? __pfx_efivarfs_actor (fs/efivarfs/super.c:404) [ 660.394135] notifier_call_chain (kernel/notifier.c:87) [ 660.394139] blocking_notifier_call_chain (kernel/notifier.c:381 kernel/notifier.c:368) [ 660.394142] pm_notifier_call_chain (kernel/power/main.c:110) [ 660.394145] snapshot_release (kernel/power/user.c:127) [ 660.394148] __fput (fs/file_table.c:465 (discriminator 1)) [ 660.394152] ____fput (fs/file_table.c:493) [ 660.394155] task_work_run (arch/x86/include/asm/jump_label.h:36 include/linux/livepatch_sched.h:18 include/linux/sched.h:2095 kernel/task_work.c:230) [ 660.394159] do_exit (kernel/exit.c:939) [ 660.394163] do_group_exit (kernel/exit.c:1069) [ 660.394166] __x64_sys_exit_group (kernel/exit.c:1098) [ 660.394170] x64_sys_call (arch/x86/entry/syscall_64.c:32) [ 660.394173] do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) [ 660.394176] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394179] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/include/asm/entry-common.h:58 arch/x86/include/asm/entry-common.h:65) [ 660.394183] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394185] ? syscall_exit_to_user_mode (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/entry-common.h:364 kernel/entry/common.c:220) [ 660.394188] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394190] ? do_syscall_64 (arch/x86/include/asm/cpufeature.h:172 arch/x86/entry/common.c:98) [ 660.394193] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394195] ? count_memcg_events.constprop.0 (arch/x86/include/asm/irqflags.h:158 (discriminator 1) include/linux/memcontrol.h:970 (discriminator 1)) [ 660.394199] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394201] ? handle_mm_fault (mm/memory.c:6071 mm/memory.c:6224) [ 660.394205] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394207] ? do_user_addr_fault (arch/x86/mm/fault.c:1341) [ 660.394211] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394213] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/include/asm/entry-common.h:57 (discriminator 1) arch/x86/include/asm/entry-common.h:65 (discriminator 1)) [ 660.394215] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394217] ? irqentry_exit_to_user_mode (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/entry-common.h:364 kernel/entry/common.c:233) [ 660.394220] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394222] ? irqentry_exit (kernel/entry/common.c:367) [ 660.394224] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:182) [ 660.394226] ? exc_page_fault (arch/x86/mm/fault.c:1542) [ 660.394229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2113990 Title: NULL pointer dereference caught by ubuntu_stress_smoke_test:sut-scan Status in linux package in Ubuntu: Invalid Status in linux-gcp package in Ubuntu: Invalid Status in linux source package in Plucky: New Status in linux-gcp source package in Plucky: New Bug description: SRU cycle 2025.05.19 regression test results showed a kernel panic caused by test ubuntu_stress_smoke_test:sut-scan for plucky:linux-gcp 6.14.0-1008.8 The failure was subsequently determined to affect the generic kernel as well. R2IP: 0010:alloc_fs_context+0x98/0x2c0 [ 657.299494] Code: 49 89 47 28 48 8b 82 80 0c 00 00 48 85 c0 74 0f c7 80 a8 00 00 00 00 00 00 00 f0 48 83 00 01 49 89 47 58 48 8b 82 e8 0c 00 00 <4c> 8b 70 28 b8 01 00 00 00 49 8d be 8c 00 00 00 f0 41 0f c1 86 8c 148T36212]: 3R0:SP: 0018:ff3ecfe6c0e2f9e8 EFLAGS: 00010202 [ 657.323687] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 93+009201:0]0 R DX: ff2f619768b20000 RSI: 0000000000000000 RDI: 0000000000000000 [ 657.338157] RBP: ff3ecfe6c0e2fa18 R08: 0000000000000000 R09: 0000000000000000 4c5p3-960-]1 4R-10: 0000000000000000 R11: 0000000000000000 R12: ffffffff99cae940 [ 657.352621] R13: 0000000000000000 R14: 0000000000000000 R15: ff2f6196c030f480 5-9s9t4r1e]s sF-S: 0000000000000000(0000) GS:ff2f6199b0c80000(0000) knlGS:0000000000000000 [ 657.368129] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 7k3e9r8n9e]l :CR2: 0000000000000028 CR3: 000000024c840001 CR4: 0000000000371ef0 [ 657.381315] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 8 8r5e4p7e]a tDeR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 [ 657.395782] Call Trace: s9:8 3[3 1d]e v <TASK> ice-mapper: ioct[ 657.400532] fs_context_for_mount+0x17/0x30 [ 657.406199] vfs_kern_mount.part.0+0x19/0xd0 i1d05 d7a6t]a vfs_kern_mount+0x13/0x40 [ 657.414338] efivarfs_pm_notify+0xfe/0x130 1t8h5e3 6i]o c t? __pfx_efivarfs_actor+0x10/0x10 [ 657.422994] notifier_call_chain+0x5e/0xc0 u2r7e1:9 44]2 9blocking_notifier_call_chain+0x41/0x70 [ 657.432171] pm_notifier_call_chain+0x1a/0x30 3 62604255]- 0 snapshot_release+0x71/0xb0 [ 657.440577] __fput+0xea/0x2d0 43307:3331]. 9 2____fput+0x15/0x20 [ 657.447148] task_work_run+0x61/0xb0 0500 8p2-5l]g cdo_exit+0x26e/0x4b0 [ 657.454153] ? do_syscall_64+0x8a/0x170 1548-0c940s]t d do_group_exit+0x34/0x90 [ 657.461766] __x64_sys_exit_group+0x18/0x20 s6s6-0s6m6k]- t x64_sys_call+0x141e/0x2310 [ 657.470019] do_syscall_64+0x7e/0x170 e7l3:7 8e0f]i v ? do_read_fault+0xeb/0x1e0 [ 657.477715] ? do_fault+0x151/0x210 s8y1n3c4i1n]g ? handle_pte_fault+0x97/0x1f0 [ 657.485541] ? __handle_mm_fault+0x3d2/0x7a0 8s9t9a1t0e] ? __count_memcg_events+0xd8/0x1a0 [ 657.494454] ? count_memcg_events.constprop.0+0x2a/0x50 90947T7292]: 3 0? handle_mm_fault+0x1b1/0x2d0 [ 657.503978] ? do_user_addr_fault+0x5af/0x7b0 0098+40306:] 00 ? arch_exit_to_user_mode_prepare.isra.0+0x22/0xd0 [ 657.515410] ? irqentry_exit_to_user_mode+0x2d/0x1d0 2g0c4p75-6] - 14? irqentry_exit+0x21/0x40 [ 657.524324] ? clear_bhb_loop+0x15/0x70 2u-8s2t6r4e]s s ? clear_bhb_loop+0x15/0x70 [ 657.532199] ? clear_bhb_loop+0x15/0x70 3t6 1k3e4r]n e lentry_SYSCALL_64_after_hwframe+0x76/0x7e [ 657.541287] RIP: 0033:0x7676cf8f668d 4e4r9n7e9l] NCUode: Unable to access opcode bytes at 0x7676cf8f6663. [ 657.551257] RSP: 002b:00007ffd4c78a648 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 5e8r9 2d7e]r eRfAX: ffffffffffffffda RBX: 0000000000000800 RCX: 00007676cf8f668d [ 657.566178] RDX: 00000000000000e7 RSI: ffffffffffffff80 RDI: 0000000000000000 ,4 1a3d]d rRess:BP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 657.580649] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000059682f00 070808020]0 0R0213: 0000000000000001 R14: 00006373fc42ac80 R15: 00007676cfbb43b0 [ 657.595119] </TASK> 8 2025-06-04T22[ 657.597402] Modules linked in: vfio_iommu_type1 vfio iommufd vhost_vsock vhost_net snd_seq vhost snd_seq_device snd_timer snd vhost_iotlb tap soundcore zfs(PO) spl(O) cuse dccp_ipv4 dccp atm sm3_generic sm3_avx_x86_64 sm3 poly1305_generic poly1305_x86_64 nhpoly1305_avx2 nhpoly1305_sse2 nhpoly1305 libpoly1305 michael_mic md4 streebog_generic rmd160 crc32_generic cmac algif_rng twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common serpent_avx2 serpent_avx_x86_64 serpent_sse2_x86_64 serpent_generic fcrypt cast6_avx_x86_64 cast6_generic cast5_avx_x86_64 cast5_generic cast_common camellia_generic camellia_aesni_avx2 camellia_aesni_avx_x86_64 camellia_x86_64 blowfish_generic blowfish_x86_64 blowfish_common ecrdsa_generic algif_skcipher algif_hash aria_gfni_avx512_x86_64 aria_aesni_avx2_x86_64 aria_aesni_avx_x86_64 aria_generic sm4_generic sm4_aesni_avx2_x86_64 sm4_aesni_avx_x86_64 sm4 ccm des3_ede_x86_64 des_generic libdes authenc aegis128 aegis128_aesni algif_aead af_alg binfmt_misc 8021q :30:31.928010+00[ 657.597470] garp mrp stp llc nls_iso8859_1 input_leds sch_fq_codel nvme_fabrics efi_pstore dm_multipath vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock vmw_vmci dmi_sysfs ip_tables x_tables autofs4 btrfs blake2b_generic raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 linear polyval_clmulni polyval_generic ghash_clmulni_intel sha256_ssse3 psmouse sha1_ssse3 serio_raw gve virtio_rng aesni_intel crypto_simd cryptd :00 p-lgcp-gcp-6[ 657.734115] CR2: 0000000000000028 [ 657.738915] ---[ end trace 0000000000000000 ]--- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2113990/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
