Rin Cat writes via Kernel.org Bugzilla: When enabled LLVM/clang Control Flow Integrity in the kernel config, nfs caused kernel panic due to violate validation. Linux: 6.1.55 Clang: 16.0.6 [ 1512.331974] CFI failure at nfsd4_encode_operation+0xa2/0x210 [nfsd] (target: nfs4svc_encode_compoundres+0xb10/0x6f40 [nfsd]; expected type: 0x5d70b2b0) [ 1512.331991] WARNING: CPU: 6 PID: 16245 at nfsd4_encode_operation+0xa2/0x210 [nfsd] [ 1512.332000] Modules linked in: macvlan ebtable_filter ebtables ip6table_raw ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_raw iptable_mangle iptable_nat iptable_filter ip_tables bpfilter fuse zram wireguard ip6_udp_tunnel udp_tunnel libchacha20poly1305 poly1305_x86_64 chacha_x86_64 curve25519_x86_64 libcurve25519_generic libchacha nfs fscache netfs nfsd auth_rpcgss lockd grace cfg80211 rfkill 8021q mrp garp stp llc sunrpc nft_chain_nat nf_nat nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink msr tcp_bbr sch_fq nls_iso8859_1 vfat fat amdgpu snd_hda_codec_realtek snd_hda_codec_generic drm_buddy ledtrig_audio video drm_ttm_helper snd_hda_codec_hdmi ttm amd64_edac drm_display_helper edac_mce_amd snd_hda_intel snd_intel_dspcfg drm_kms_helper snd_hda_codec kvm_amd gpu_sched mxm_wmi wmi_bmof snd_hda_core kvm snd_hwdep snd_pcm irqbypass crct10dif_pclmul snd_timer drm snd ghash_clmulni_intel backlight soundcore k10temp pcspkr rapl wmi acpi_cpufreq efiv arfs [ 1512.332048] dm_crypt dm_mod dax sd_mod igb mlx4_en i2c_algo_bit nvme i2c_core nvme_core dca crc32_pclmul t10_pi ptp mlx4_core xhci_pci crc32c_intel ahci xhci_hcd crc64_rocksoft pps_core libahci crc64 [ 1512.332060] CPU: 6 PID: 16245 Comm: nfsd Tainted: P 6.1.55-x86_64 #1 [ 1512.332062] Hardware name: System manufacturer System Product Name/PRIME X570-PRO, BIOS 4602 02/23/2023 [ 1512.332063] RIP: 0010:nfsd4_encode_operation+0xa2/0x210 [nfsd] [ 1512.332071] Code: 01 00 00 8d 48 b4 83 f9 b6 0f 86 81 01 00 00 4c 8b 1c c5 d0 d0 ae c0 48 8d 53 20 4c 89 ef 41 ba 50 4d 8f a2 45 03 53 fc 74 02 <0f> 0b 2e e8 e6 df 34 e4 89 43 04 49 83 7f 28 00 75 10 85 c0 74 1b [ 1512.332073] RSP: 0018:ffffbe7f067bbdc0 EFLAGS: 00010287 [ 1512.332074] RAX: 0000000000000009 RBX: ffffa2a2e30de480 RCX: 00000000ffffffbd [ 1512.332076] RDX: ffffa2a2e30de4a0 RSI: 0000000000000000 RDI: ffffa2a2e30dc000 [ 1512.332077] RBP: ffffffffc0aec1d8 R08: 0000000000000000 R09: 0000000000000000 [ 1512.332078] R10: 0000000094d577e1 R11: ffffffffc0ab3640 R12: ffffa2a163100000 [ 1512.332080] R13: ffffa2a2e30dc000 R14: ffffa2a3ea430058 R15: ffffa2a163100230 [ 1512.332081] FS: 0000000000000000(0000) GS:ffffa2afeeb80000(0000) knlGS:0000000000000000 [ 1512.332083] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1512.332084] CR2: 00007efee25ff000 CR3: 0000000323380000 CR4: 0000000000350ee0 [ 1512.332085] Call Trace: [ 1512.332086] <TASK> [ 1512.332087] ? __warn+0xac/0x160 [ 1512.332090] ? nfsd4_encode_operation+0xa2/0x210 [nfsd] [ 1512.332098] ? report_cfi_failure+0x45/0x70 [ 1512.332100] ? handle_cfi_failure+0x143/0x1d0 [ 1512.332103] ? nfs4svc_encode_compoundres+0xb10/0x6f40 [nfsd] [ 1512.332112] ? handle_bug+0x4f/0xa0 [ 1512.332114] ? exc_invalid_op+0x16/0x50 [ 1512.332116] ? asm_exc_invalid_op+0x16/0x20 [ 1512.332119] ? nfs4svc_encode_compoundres+0xb10/0x6f40 [nfsd] [ 1512.332128] ? nfsd4_encode_operation+0xa2/0x210 [nfsd] [ 1512.332137] warn_on_nonidempotent_op+0x417d/0x4370 [nfsd] [ 1512.332146] nfsd_dispatch+0x170/0x210 [nfsd] [ 1512.332155] svc_process+0x3d4/0x780 [sunrpc] [ 1512.332165] ? __cfi_nfsd_dispatch+0x10/0x10 [nfsd] [ 1512.332173] svc_process+0xdc/0x780 [sunrpc] [ 1512.332183] i_am_nfsd+0x109/0x1d0 [nfsd] [ 1512.332192] ? i_am_nfsd+0x40/0x1d0 [nfsd] [ 1512.332200] kthread+0x114/0x130 [ 1512.332202] ? __cfi_kthread+0x10/0x10 [ 1512.332204] ret_from_fork+0x22/0x30 [ 1512.332207] </TASK> [ 1512.332207] ---[ end trace 0000000000000000 ]--- View: https://bugzilla.kernel.org/show_bug.cgi?id=217973#c0 You can reply to this message to join the discussion. -- Deet-doot-dot, I am a bot. Kernel.org Bugzilla (bugspray 0.1-dev)
