Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts. executing program [ 117.693607][T11402] ===================================================== [ 117.700776][T11402] BUG: KMSAN: uninit-value in strlen+0x5e/0xa0 [ 117.706918][T11402] CPU: 1 PID: 11402 Comm: syz-executor230 Not tainted 5.6.0-rc2-syzkaller #0 [ 117.715662][T11402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.725742][T11402] Call Trace: [ 117.729052][T11402] dump_stack+0x1c9/0x220 [ 117.733721][T11402] kmsan_report+0xf7/0x1e0 [ 117.740076][T11402] __msan_warning+0x58/0xa0 [ 117.744575][T11402] strlen+0x5e/0xa0 [ 117.748387][T11402] simple_attr_read+0x1ec/0x740 [ 117.753321][T11402] ? kmsan_get_metadata+0x11d/0x180 [ 117.758529][T11402] debugfs_attr_read+0x13e/0x290 [ 117.763472][T11402] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 117.769270][T11402] ? full_proxy_open+0xef0/0xef0 [ 117.774262][T11402] __vfs_read+0x1a9/0xc80 [ 117.778587][T11402] ? rw_verify_area+0x2c4/0x5b0 [ 117.783437][T11402] vfs_read+0x346/0x6a0 [ 117.787596][T11402] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 117.793388][T11402] ksys_read+0x267/0x450 [ 117.797681][T11402] __se_sys_read+0x92/0xb0 [ 117.802094][T11402] __x64_sys_read+0x4a/0x70 [ 117.806991][T11402] do_syscall_64+0xb8/0x160 [ 117.811500][T11402] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.817990][T11402] RIP: 0033:0x440269 [ 117.821874][T11402] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 117.841469][T11402] RSP: 002b:00007fff09d3bc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 117.849867][T11402] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440269 [ 117.857927][T11402] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 117.866075][T11402] RBP: 00000000006ca018 R08: 000000000000000a R09: 000000000000000a [ 117.874035][T11402] R10: 0000000000010001 R11: 0000000000000246 R12: 0000000000401af0 [ 117.882114][T11402] R13: 0000000000401b80 R14: 0000000000000000 R15: 0000000000000000 [ 117.890085][T11402] [ 117.892399][T11402] Uninit was created at: [ 117.896633][T11402] kmsan_internal_poison_shadow+0x66/0xd0 [ 117.902345][T11402] kmsan_slab_alloc+0x8a/0xe0 [ 117.907033][T11402] kmem_cache_alloc_trace+0x6f3/0xd70 [ 117.912468][T11402] simple_attr_open+0xd4/0x400 [ 117.917230][T11402] lowpan_enable_fops_open+0x94/0xb0 [ 117.922599][T11402] open_proxy_open+0x657/0x800 [ 117.927404][T11402] do_dentry_open+0xf89/0x1820 [ 117.932151][T11402] vfs_open+0xaf/0xe0 [ 117.936261][T11402] path_openat+0x4d57/0x6bd0 [ 117.940887][T11402] do_filp_open+0x2b8/0x710 [ 117.945567][T11402] do_sys_openat2+0x92e/0xd40 [ 117.950294][T11402] __se_sys_openat+0x24a/0x2b0 [ 117.955054][T11402] __x64_sys_openat+0x56/0x70 [ 117.959723][T11402] do_syscall_64+0xb8/0x160 [ 117.964220][T11402] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.970374][T11402] ===================================================== [ 117.977372][T11402] Disabling lock debugging due to kernel taint [ 117.983516][T11402] Kernel panic - not syncing: panic_on_warn set ... [ 117.990199][T11402] CPU: 1 PID: 11402 Comm: syz-executor230 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 118.000330][T11402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.010381][T11402] Call Trace: [ 118.013673][T11402] dump_stack+0x1c9/0x220 [ 118.018007][T11402] panic+0x3d5/0xc3e [ 118.021964][T11402] kmsan_report+0x1df/0x1e0 [ 118.026536][T11402] __msan_warning+0x58/0xa0 [ 118.031269][T11402] strlen+0x5e/0xa0 [ 118.035101][T11402] simple_attr_read+0x1ec/0x740 [ 118.040255][T11402] ? kmsan_get_metadata+0x11d/0x180 [ 118.045459][T11402] debugfs_attr_read+0x13e/0x290 [ 118.050482][T11402] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 118.056304][T11402] ? full_proxy_open+0xef0/0xef0 [ 118.061264][T11402] __vfs_read+0x1a9/0xc80 [ 118.065649][T11402] ? rw_verify_area+0x2c4/0x5b0 [ 118.070563][T11402] vfs_read+0x346/0x6a0 [ 118.074726][T11402] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 118.080768][T11402] ksys_read+0x267/0x450 [ 118.085082][T11402] __se_sys_read+0x92/0xb0 [ 118.089515][T11402] __x64_sys_read+0x4a/0x70 [ 118.094133][T11402] do_syscall_64+0xb8/0x160 [ 118.098710][T11402] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 118.104670][T11402] RIP: 0033:0x440269 [ 118.108575][T11402] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 118.128645][T11402] RSP: 002b:00007fff09d3bc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 118.137048][T11402] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440269 [ 118.145009][T11402] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 118.153084][T11402] RBP: 00000000006ca018 R08: 000000000000000a R09: 000000000000000a [ 118.161148][T11402] R10: 0000000000010001 R11: 0000000000000246 R12: 0000000000401af0 [ 118.169225][T11402] R13: 0000000000401b80 R14: 0000000000000000 R15: 0000000000000000 [ 118.178769][T11402] Kernel Offset: 0x11200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 118.190531][T11402] Rebooting in 86400 seconds..