Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts. executing program [ 90.246680][ T33] audit: type=1400 audit(1588933715.659:8): avc: denied { execmem } for pid=8795 comm="syz-executor283" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 90.274445][ T8795] ===================================================== [ 90.282156][ T8795] BUG: KMSAN: uninit-value in eth_type_trans+0x574/0xa90 [ 90.289705][ T8795] CPU: 0 PID: 8795 Comm: syz-executor283 Not tainted 5.6.0-rc7-syzkaller #0 [ 90.299497][ T8795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.310479][ T8795] Call Trace: [ 90.313863][ T8795] dump_stack+0x1c9/0x220 [ 90.318613][ T8795] kmsan_report+0xf7/0x1e0 [ 90.323250][ T8795] __msan_warning+0x58/0xa0 [ 90.327944][ T8795] eth_type_trans+0x574/0xa90 [ 90.333270][ T8795] __dev_forward_skb+0x3ec/0x990 [ 90.339366][ T8795] ? pskb_expand_head+0x151e/0x1b00 [ 90.345012][ T8795] dev_forward_skb+0x79/0x110 [ 90.349934][ T8795] __bpf_redirect+0x125b/0x1440 [ 90.355432][ T8795] bpf_clone_redirect+0x466/0x620 [ 90.360754][ T8795] ? bpf_prog_a467eebe3b6cb835+0x954/0x1000 [ 90.367005][ T8795] bpf_prog_a467eebe3b6cb835+0x9b3/0x1000 [ 90.373260][ T8795] ? bpf_prog_a467eebe3b6cb835+0x954/0x1000 [ 90.379445][ T8795] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 90.386008][ T8795] ? kmsan_get_metadata+0x4f/0x180 [ 90.391418][ T8795] ? kmsan_internal_set_origin+0x75/0xb0 [ 90.397309][ T8795] ? __msan_poison_alloca+0xf0/0x120 [ 90.403304][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.409317][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.415215][ T8795] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 90.421286][ T8795] ? ktime_get+0x2b8/0x400 [ 90.425926][ T8795] ? kmsan_get_metadata+0x4f/0x180 [ 90.431428][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.437614][ T8795] ? bpf_prog_a467eebe3b6cb835+0x954/0x1000 [ 90.443702][ T8795] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 90.450106][ T8795] bpf_test_run+0x60c/0xe50 [ 90.454928][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.460698][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.467105][ T8795] bpf_prog_test_run_skb+0xcab/0x24a0 [ 90.473128][ T8795] ? bpf_fentry_test6+0xd0/0xd0 [ 90.477981][ T8795] __do_sys_bpf+0xa684/0x13510 [ 90.482888][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.488995][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.494478][ T8795] ? kmsan_set_origin_checked+0x95/0xf0 [ 90.500773][ T8795] ? __fpregs_load_activate+0x38c/0x3c0 [ 90.506493][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.512246][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.518551][ T8795] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 90.524654][ T8795] ? prepare_exit_to_usermode+0x1ca/0x520 [ 90.530872][ T8795] ? kmsan_get_metadata+0x4f/0x180 [ 90.536210][ T8795] ? kmsan_get_metadata+0x4f/0x180 [ 90.541454][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.547408][ T8795] __ia32_sys_bpf+0xdb/0x120 [ 90.552312][ T8795] ? __se_sys_bpf+0xa0/0xa0 [ 90.557171][ T8795] do_fast_syscall_32+0x3c7/0x6e0 [ 90.562211][ T8795] entry_SYSENTER_compat+0x68/0x77 [ 90.567592][ T8795] RIP: 0023:0xf7ff3d99 [ 90.571655][ T8795] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 90.592338][ T8795] RSP: 002b:00000000ffd05a4c EFLAGS: 00000213 ORIG_RAX: 0000000000000165 [ 90.601039][ T8795] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000080 [ 90.609474][ T8795] RDX: 0000000000000028 RSI: 00000000080eb00c RDI: 0000000000000000 [ 90.617654][ T8795] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 90.625969][ T8795] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 90.634118][ T8795] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 90.642412][ T8795] [ 90.644825][ T8795] Uninit was created at: [ 90.649267][ T8795] kmsan_internal_poison_shadow+0x66/0xd0 [ 90.655351][ T8795] kmsan_slab_alloc+0x8a/0xe0 [ 90.660027][ T8795] __kmalloc_node_track_caller+0xb40/0x1200 [ 90.666077][ T8795] pskb_expand_head+0x20b/0x1b00 [ 90.671224][ T8795] skb_ensure_writable+0x3ea/0x490 [ 90.676460][ T8795] bpf_clone_redirect+0x251/0x620 [ 90.682327][ T8795] bpf_prog_a467eebe3b6cb835+0x9b3/0x1000 [ 90.688529][ T8795] bpf_test_run+0x60c/0xe50 [ 90.693031][ T8795] bpf_prog_test_run_skb+0xcab/0x24a0 [ 90.699217][ T8795] __do_sys_bpf+0xa684/0x13510 [ 90.709091][ T8795] __ia32_sys_bpf+0xdb/0x120 [ 90.713723][ T8795] do_fast_syscall_32+0x3c7/0x6e0 [ 90.719090][ T8795] entry_SYSENTER_compat+0x68/0x77 [ 90.725203][ T8795] ===================================================== [ 90.732413][ T8795] Disabling lock debugging due to kernel taint [ 90.738911][ T8795] Kernel panic - not syncing: panic_on_warn set ... [ 90.745938][ T8795] CPU: 0 PID: 8795 Comm: syz-executor283 Tainted: G B 5.6.0-rc7-syzkaller #0 [ 90.757132][ T8795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.768098][ T8795] Call Trace: [ 90.771779][ T8795] dump_stack+0x1c9/0x220 [ 90.776767][ T8795] panic+0x3d5/0xc3e [ 90.780772][ T8795] kmsan_report+0x1df/0x1e0 [ 90.785694][ T8795] __msan_warning+0x58/0xa0 [ 90.790367][ T8795] eth_type_trans+0x574/0xa90 [ 90.795520][ T8795] __dev_forward_skb+0x3ec/0x990 [ 90.801860][ T8795] ? pskb_expand_head+0x151e/0x1b00 [ 90.807703][ T8795] dev_forward_skb+0x79/0x110 [ 90.812656][ T8795] __bpf_redirect+0x125b/0x1440 [ 90.817957][ T8795] bpf_clone_redirect+0x466/0x620 [ 90.828117][ T8795] ? bpf_prog_a467eebe3b6cb835+0x954/0x1000 [ 90.836839][ T8795] bpf_prog_a467eebe3b6cb835+0x9b3/0x1000 [ 90.842834][ T8795] ? bpf_prog_a467eebe3b6cb835+0x954/0x1000 [ 90.849122][ T8795] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 90.857226][ T8795] ? kmsan_get_metadata+0x4f/0x180 [ 90.862521][ T8795] ? kmsan_internal_set_origin+0x75/0xb0 [ 90.869292][ T8795] ? __msan_poison_alloca+0xf0/0x120 [ 90.875485][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.880789][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.887266][ T8795] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 90.893773][ T8795] ? ktime_get+0x2b8/0x400 [ 90.898561][ T8795] ? kmsan_get_metadata+0x4f/0x180 [ 90.904268][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.910531][ T8795] ? bpf_prog_a467eebe3b6cb835+0x954/0x1000 [ 90.916632][ T8795] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 90.923353][ T8795] bpf_test_run+0x60c/0xe50 [ 90.929119][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.934550][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.941906][ T8795] bpf_prog_test_run_skb+0xcab/0x24a0 [ 90.947683][ T8795] ? bpf_fentry_test6+0xd0/0xd0 [ 90.953484][ T8795] __do_sys_bpf+0xa684/0x13510 [ 90.958990][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.965747][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.973113][ T8795] ? kmsan_set_origin_checked+0x95/0xf0 [ 90.979399][ T8795] ? __fpregs_load_activate+0x38c/0x3c0 [ 90.985579][ T8795] ? kmsan_get_metadata+0x11d/0x180 [ 90.990952][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.996935][ T8795] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 91.003930][ T8795] ? prepare_exit_to_usermode+0x1ca/0x520 [ 91.009880][ T8795] ? kmsan_get_metadata+0x4f/0x180 [ 91.014992][ T8795] ? kmsan_get_metadata+0x4f/0x180 [ 91.020492][ T8795] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 91.027162][ T8795] __ia32_sys_bpf+0xdb/0x120 [ 91.031941][ T8795] ? __se_sys_bpf+0xa0/0xa0 [ 91.036809][ T8795] do_fast_syscall_32+0x3c7/0x6e0 [ 91.042069][ T8795] entry_SYSENTER_compat+0x68/0x77 [ 91.048083][ T8795] RIP: 0023:0xf7ff3d99 [ 91.052250][ T8795] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 91.073369][ T8795] RSP: 002b:00000000ffd05a4c EFLAGS: 00000213 ORIG_RAX: 0000000000000165 [ 91.082814][ T8795] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000080 [ 91.091492][ T8795] RDX: 0000000000000028 RSI: 00000000080eb00c RDI: 0000000000000000 [ 91.099753][ T8795] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 91.108128][ T8795] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 91.116635][ T8795] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 91.127281][ T8795] Kernel Offset: 0x2a800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 91.139921][ T8795] Rebooting in 86400 seconds..