[ 4062.757971][ C1] ================================================================== [ 4062.758282][ C1] BUG: KASAN: null-ptr-deref in sock_def_write_space_wfree+0x210/0x370 [ 4062.758518][ C1] Read of size 8 at addr 0000000000000008 by task swapper/1/0 [ 4062.758736][ C1] [ 4062.758819][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc2-virtme #1 [ 4062.759040][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4062.759382][ C1] Call Trace: [ 4062.759505][ C1] [ 4062.759593][ C1] dump_stack_lvl+0x82/0xd0 [ 4062.759746][ C1] kasan_report+0xbd/0xf0 [ 4062.759858][ C1] ? sock_def_write_space_wfree+0x210/0x370 [ 4062.760067][ C1] kasan_check_range+0x39/0x1c0 [ 4062.760220][ C1] sock_def_write_space_wfree+0x210/0x370 [ 4062.760369][ C1] sock_wfree+0x25f/0x3e0 [ 4062.760482][ C1] skb_release_head_state+0x7a/0x1e0 [ 4062.760630][ C1] consume_skb+0x76/0x110 [ 4062.760744][ C1] dummy_xmit+0x106/0x170 [ 4062.760864][ C1] ? trace_net_dev_start_xmit+0xff/0x170 [ 4062.761020][ C1] dev_hard_start_xmit+0x10e/0x360 [ 4062.761181][ C1] sch_direct_xmit+0x203/0x11c0 [ 4062.761337][ C1] ? __pfx_sch_direct_xmit+0x10/0x10 [ 4062.761496][ C1] __qdisc_run+0x1cd/0x3d0 [ 4062.761644][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4062.761792][ C1] ? __pfx___qdisc_run+0x10/0x10 [ 4062.761941][ C1] ? do_raw_spin_lock+0x131/0x270 [ 4062.762089][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 4062.762237][ C1] ? lock_acquire+0x32/0xc0 [ 4062.762383][ C1] ? net_tx_action+0x3a5/0x680 [ 4062.762535][ C1] net_tx_action+0x3f6/0x680 [ 4062.762687][ C1] __do_softirq+0x1f8/0x5df [ 4062.762861][ C1] irq_exit_rcu+0x97/0xc0 [ 4062.762980][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 4062.763134][ C1] [ 4062.763211][ C1] [ 4062.763289][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4062.763479][ C1] RIP: 0010:default_idle+0xf/0x20 [ 4062.763635][ C1] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d e3 bc 32 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 4062.764167][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 4062.764366][ C1] RAX: 0000000005678e17 RBX: 1ffff92000029fc1 RCX: ffffffff95535e95 [ 4062.764593][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff92cac0e4 [ 4062.764819][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005ed709c [ 4062.765043][ C1] R10: ffff88802f6b84e3 R11: ffff88802f6ad9b0 R12: 0000000000000000 [ 4062.765277][ C1] R13: ffff888001b8a300 R14: dffffc0000000000 R15: 0000000000000000 [ 4062.765515][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 4062.765666][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 4062.765818][ C1] default_idle_call+0x6d/0xb0 [ 4062.765968][ C1] cpuidle_idle_call+0x1f4/0x280 [ 4062.766121][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 4062.766271][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 4062.766427][ C1] do_idle+0xf9/0x160 [ 4062.766538][ C1] cpu_startup_entry+0x54/0x60 [ 4062.766688][ C1] start_secondary+0x21c/0x2b0 [ 4062.766833][ C1] ? __pfx_start_secondary+0x10/0x10 [ 4062.766979][ C1] common_startup_64+0x12c/0x138 [ 4062.767138][ C1] [ 4062.767253][ C1] ================================================================== [ 4062.767488][ C1] Disabling lock debugging due to kernel taint [ 4062.767715][ C1] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 4062.768058][ C1] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 4062.768298][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G B 6.9.0-rc2-virtme #1 [ 4062.768572][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4062.768930][ C1] RIP: 0010:sock_def_write_space_wfree+0x221/0x370 [ 4062.769131][ C1] Code: 00 4c 8b b3 a0 01 00 00 be 08 00 00 00 4d 8d 7e 08 4c 89 ff e8 b0 0b 8b fe 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 1e 01 00 00 49 8b 46 08 a8 04 0f 84 5c fe ff ff [ 4062.769665][ C1] RSP: 0018:ffffc900001d8c30 EFLAGS: 00010202 [ 4062.769863][ C1] RAX: dffffc0000000000 RBX: ffff888002bbaac0 RCX: ffffffff92b9564a [ 4062.770104][ C1] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff980ffa00 [ 4062.770350][ C1] RBP: ffff888002bbab20 R08: 0000000000000001 R09: fffffbfff301ff40 [ 4062.770569][ C1] R10: ffffffff980ffa07 R11: 205d314320202020 R12: 0000000000000000 [ 4062.770805][ C1] R13: ffff888002bbac40 R14: 0000000000000000 R15: 0000000000000008 [ 4062.771042][ C1] FS: 0000000000000000(0000) GS:ffff88802f680000(0000) knlGS:0000000000000000 [ 4062.771311][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4062.771511][ C1] CR2: 00007ffa1d7e6000 CR3: 0000000035938005 CR4: 0000000000770ef0 [ 4062.771747][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4062.771981][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4062.772209][ C1] PKRU: 55555554 [ 4062.772325][ C1] Call Trace: [ 4062.772436][ C1] [ 4062.772515][ C1] ? die_addr+0x41/0xa0 [ 4062.772637][ C1] ? exc_general_protection+0x149/0x220 [ 4062.772792][ C1] ? asm_exc_general_protection+0x26/0x30 [ 4062.772937][ C1] ? add_taint+0x2a/0x90 [ 4062.773051][ C1] ? sock_def_write_space_wfree+0x221/0x370 [ 4062.773252][ C1] sock_wfree+0x25f/0x3e0 [ 4062.773369][ C1] skb_release_head_state+0x7a/0x1e0 [ 4062.773515][ C1] consume_skb+0x76/0x110 [ 4062.773627][ C1] dummy_xmit+0x106/0x170 [ 4062.773737][ C1] ? trace_net_dev_start_xmit+0xff/0x170 [ 4062.773886][ C1] dev_hard_start_xmit+0x10e/0x360 [ 4062.774038][ C1] sch_direct_xmit+0x203/0x11c0 [ 4062.774188][ C1] ? __pfx_sch_direct_xmit+0x10/0x10 [ 4062.774341][ C1] __qdisc_run+0x1cd/0x3d0 [ 4062.774492][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4062.774642][ C1] ? __pfx___qdisc_run+0x10/0x10 [ 4062.774788][ C1] ? do_raw_spin_lock+0x131/0x270 [ 4062.774942][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 4062.775095][ C1] ? lock_acquire+0x32/0xc0 [ 4062.775255][ C1] ? net_tx_action+0x3a5/0x680 [ 4062.775412][ C1] net_tx_action+0x3f6/0x680 [ 4062.775649][ C1] __do_softirq+0x1f8/0x5df [ 4062.775799][ C1] irq_exit_rcu+0x97/0xc0 [ 4062.775916][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 4062.776071][ C1] [ 4062.776150][ C1] [ 4062.776228][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4062.776494][ C1] RIP: 0010:default_idle+0xf/0x20 [ 4062.776651][ C1] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d e3 bc 32 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 4062.777284][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 4062.777474][ C1] RAX: 0000000005678e17 RBX: 1ffff92000029fc1 RCX: ffffffff95535e95 [ 4062.777806][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff92cac0e4 [ 4062.778040][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005ed709c [ 4062.778274][ C1] R10: ffff88802f6b84e3 R11: ffff88802f6ad9b0 R12: 0000000000000000 [ 4062.778584][ C1] R13: ffff888001b8a300 R14: dffffc0000000000 R15: 0000000000000000 [ 4062.778813][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 4062.778970][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 4062.779122][ C1] default_idle_call+0x6d/0xb0 [ 4062.779272][ C1] cpuidle_idle_call+0x1f4/0x280 [ 4062.779505][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 4062.779653][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 4062.779814][ C1] do_idle+0xf9/0x160 [ 4062.779926][ C1] cpu_startup_entry+0x54/0x60 [ 4062.780170][ C1] start_secondary+0x21c/0x2b0 [ 4062.780318][ C1] ? __pfx_start_secondary+0x10/0x10 [ 4062.780478][ C1] common_startup_64+0x12c/0x138 [ 4062.780718][ C1] [ 4062.780827][ C1] Modules linked in: sch_fq xt_HL amt xfrm_interface sha1_generic sctp_diag sctp nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bonding psample macsec cls_u32 sch_htb ip6_gre ip_gre gre xt_mark nft_compat nf_tables sch_ingress act_mirred cls_basic sch_fq_codel xfrm_user geneve vxlan act_csum libcrc32c act_pedit cls_flower sch_prio [last unloaded: netdevsim] [ 4062.781926][ C1] ---[ end trace 0000000000000000 ]--- [ 4062.782168][ C1] RIP: 0010:sock_def_write_space_wfree+0x221/0x370 [ 4062.782364][ C1] Code: 00 4c 8b b3 a0 01 00 00 be 08 00 00 00 4d 8d 7e 08 4c 89 ff e8 b0 0b 8b fe 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 1e 01 00 00 49 8b 46 08 a8 04 0f 84 5c fe ff ff [ 4062.783195][ C1] RSP: 0018:ffffc900001d8c30 EFLAGS: 00010202 [ 4062.783385][ C1] RAX: dffffc0000000000 RBX: ffff888002bbaac0 RCX: ffffffff92b9564a [ 4062.783771][ C1] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff980ffa00 [ 4062.784006][ C1] RBP: ffff888002bbab20 R08: 0000000000000001 R09: fffffbfff301ff40 [ 4062.784326][ C1] R10: ffffffff980ffa07 R11: 205d314320202020 R12: 0000000000000000 [ 4062.784559][ C1] R13: ffff888002bbac40 R14: 0000000000000000 R15: 0000000000000008 [ 4062.784869][ C1] FS: 0000000000000000(0000) GS:ffff88802f680000(0000) knlGS:0000000000000000 [ 4062.785152][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4062.785340][ C1] CR2: 00007ffa1d7e6000 CR3: 0000000035938005 CR4: 0000000000770ef0 [ 4062.785560][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4062.785871][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4062.786179][ C1] PKRU: 55555554 [ 4062.786294][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 4062.786716][ C1] Kernel Offset: 0x11800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 4062.787135][ C1] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]--- WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr