Warning: Permanently added '10.128.0.201' (ECDSA) to the list of known hosts. executing program [ 141.391229][ T8430] ===================================================== [ 141.398890][ T8430] BUG: KMSAN: uninit-value in sha1_transform+0x5371/0x5a90 [ 141.406073][ T8430] CPU: 1 PID: 8430 Comm: syz-executor750 Not tainted 5.8.0-rc5-syzkaller #0 [ 141.414719][ T8430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 141.424755][ T8430] Call Trace: [ 141.428064][ T8430] dump_stack+0x1df/0x240 [ 141.432392][ T8430] kmsan_report+0xf7/0x1e0 [ 141.436798][ T8430] __msan_warning+0x58/0xa0 [ 141.441289][ T8430] sha1_transform+0x5371/0x5a90 [ 141.446134][ T8430] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.452194][ T8430] ? __module_address+0x68/0x600 [ 141.457162][ T8430] crypto_sha1_finup+0x563/0x660 [ 141.462276][ T8430] ? kmsan_get_metadata+0x11d/0x180 [ 141.467474][ T8430] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 141.473447][ T8430] ? crypto_sha1_update+0x5e0/0x5e0 [ 141.478631][ T8430] crypto_shash_finup+0x2b4/0x6b0 [ 141.483672][ T8430] ? hash_sendpage+0x48c/0xdf0 [ 141.488435][ T8430] ? sock_sendpage+0x1e1/0x2c0 [ 141.493201][ T8430] ? pipe_to_sendpage+0x38c/0x4c0 [ 141.498219][ T8430] ? kmsan_get_metadata+0x11d/0x180 [ 141.503415][ T8430] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 141.509221][ T8430] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 141.515369][ T8430] shash_digest_unaligned+0x22b/0x260 [ 141.520729][ T8430] ? crypto_shash_digest+0x3d0/0x3d0 [ 141.526001][ T8430] shash_ahash_digest+0x788/0x8a0 [ 141.531113][ T8430] shash_async_digest+0xbb/0x110 [ 141.536054][ T8430] crypto_ahash_op+0x1c6/0x6c0 [ 141.540806][ T8430] ? __kmalloc+0x115/0x460 [ 141.545214][ T8430] ? kmsan_get_metadata+0x11d/0x180 [ 141.550437][ T8430] ? kmsan_get_metadata+0x11d/0x180 [ 141.555620][ T8430] ? shash_async_finup+0x110/0x110 [ 141.560712][ T8430] ? shash_async_finup+0x110/0x110 [ 141.565822][ T8430] crypto_ahash_digest+0xdc/0x150 [ 141.570836][ T8430] hash_sendpage+0x9cc/0xdf0 [ 141.575431][ T8430] ? hash_recvmsg+0xd30/0xd30 [ 141.580111][ T8430] sock_sendpage+0x1e1/0x2c0 [ 141.584702][ T8430] pipe_to_sendpage+0x38c/0x4c0 [ 141.589549][ T8430] ? sock_fasync+0x250/0x250 [ 141.594150][ T8430] __splice_from_pipe+0x565/0xf00 [ 141.599175][ T8430] ? generic_splice_sendpage+0x2d0/0x2d0 [ 141.604824][ T8430] generic_splice_sendpage+0x1d5/0x2d0 [ 141.610279][ T8430] ? iter_file_splice_write+0x1800/0x1800 [ 141.615992][ T8430] direct_splice_actor+0x1fd/0x580 [ 141.621111][ T8430] ? kmsan_get_metadata+0x4f/0x180 [ 141.626221][ T8430] splice_direct_to_actor+0x6b2/0xf50 [ 141.631582][ T8430] ? do_splice_direct+0x580/0x580 [ 141.636616][ T8430] do_splice_direct+0x342/0x580 [ 141.641478][ T8430] do_sendfile+0x101b/0x1d40 [ 141.646078][ T8430] __se_sys_sendfile64+0x2bb/0x360 [ 141.651175][ T8430] ? kmsan_get_metadata+0x4f/0x180 [ 141.656279][ T8430] __x64_sys_sendfile64+0x56/0x70 [ 141.661302][ T8430] do_syscall_64+0xb0/0x150 [ 141.665792][ T8430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 141.671682][ T8430] RIP: 0033:0x4403d9 [ 141.675558][ T8430] Code: Bad RIP value. [ 141.679624][ T8430] RSP: 002b:00007ffe9d02fed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 141.688013][ T8430] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403d9 [ 141.696226][ T8430] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005 [ 141.704180][ T8430] RBP: 00000000006ca018 R08: 65732f636f72702f R09: 65732f636f72702f [ 141.712147][ T8430] R10: 0000000000000045 R11: 0000000000000246 R12: 0000000000401c40 [ 141.720109][ T8430] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 141.728081][ T8430] [ 141.730396][ T8430] Uninit was created at: [ 141.734629][ T8430] kmsan_save_stack_with_flags+0x3c/0x90 [ 141.740244][ T8430] kmsan_alloc_page+0xb9/0x180 [ 141.744988][ T8430] __alloc_pages_nodemask+0x56a2/0x5dc0 [ 141.750522][ T8430] alloc_pages_current+0x672/0x990 [ 141.755613][ T8430] push_pipe+0x605/0xb70 [ 141.759834][ T8430] iov_iter_get_pages_alloc+0x18a9/0x21c0 [ 141.765545][ T8430] do_splice_to+0x4fc/0x14f0 [ 141.770127][ T8430] splice_direct_to_actor+0x45c/0xf50 [ 141.775496][ T8430] do_splice_direct+0x342/0x580 [ 141.780329][ T8430] do_sendfile+0x101b/0x1d40 [ 141.784906][ T8430] __se_sys_sendfile64+0x2bb/0x360 [ 141.789998][ T8430] __x64_sys_sendfile64+0x56/0x70 [ 141.795002][ T8430] do_syscall_64+0xb0/0x150 [ 141.799488][ T8430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 141.805364][ T8430] ===================================================== [ 141.812271][ T8430] Disabling lock debugging due to kernel taint [ 141.818410][ T8430] Kernel panic - not syncing: panic_on_warn set ... [ 141.824977][ T8430] CPU: 1 PID: 8430 Comm: syz-executor750 Tainted: G B 5.8.0-rc5-syzkaller #0 [ 141.835022][ T8430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 141.845055][ T8430] Call Trace: [ 141.848351][ T8430] dump_stack+0x1df/0x240 [ 141.852678][ T8430] panic+0x3d5/0xc3e [ 141.856593][ T8430] kmsan_report+0x1df/0x1e0 [ 141.861085][ T8430] __msan_warning+0x58/0xa0 [ 141.865576][ T8430] sha1_transform+0x5371/0x5a90 [ 141.870427][ T8430] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.876479][ T8430] ? __module_address+0x68/0x600 [ 141.881432][ T8430] crypto_sha1_finup+0x563/0x660 [ 141.886367][ T8430] ? kmsan_get_metadata+0x11d/0x180 [ 141.891561][ T8430] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 141.897353][ T8430] ? crypto_sha1_update+0x5e0/0x5e0 [ 141.902531][ T8430] crypto_shash_finup+0x2b4/0x6b0 [ 141.907550][ T8430] ? hash_sendpage+0x48c/0xdf0 [ 141.912311][ T8430] ? sock_sendpage+0x1e1/0x2c0 [ 141.917067][ T8430] ? pipe_to_sendpage+0x38c/0x4c0 [ 141.922072][ T8430] ? kmsan_get_metadata+0x11d/0x180 [ 141.927259][ T8430] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 141.935657][ T8430] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 141.941813][ T8430] shash_digest_unaligned+0x22b/0x260 [ 141.947708][ T8430] ? crypto_shash_digest+0x3d0/0x3d0 [ 141.952975][ T8430] shash_ahash_digest+0x788/0x8a0 [ 141.957996][ T8430] shash_async_digest+0xbb/0x110 [ 141.962941][ T8430] crypto_ahash_op+0x1c6/0x6c0 [ 141.967691][ T8430] ? __kmalloc+0x115/0x460 [ 141.972109][ T8430] ? kmsan_get_metadata+0x11d/0x180 [ 141.978189][ T8430] ? kmsan_get_metadata+0x11d/0x180 [ 141.983379][ T8430] ? shash_async_finup+0x110/0x110 [ 141.988476][ T8430] ? shash_async_finup+0x110/0x110 [ 141.993589][ T8430] crypto_ahash_digest+0xdc/0x150 [ 141.998603][ T8430] hash_sendpage+0x9cc/0xdf0 [ 142.003185][ T8430] ? hash_recvmsg+0xd30/0xd30 [ 142.007848][ T8430] sock_sendpage+0x1e1/0x2c0 [ 142.012456][ T8430] pipe_to_sendpage+0x38c/0x4c0 [ 142.017288][ T8430] ? sock_fasync+0x250/0x250 [ 142.021871][ T8430] __splice_from_pipe+0x565/0xf00 [ 142.026970][ T8430] ? generic_splice_sendpage+0x2d0/0x2d0 [ 142.032610][ T8430] generic_splice_sendpage+0x1d5/0x2d0 [ 142.038063][ T8430] ? iter_file_splice_write+0x1800/0x1800 [ 142.043764][ T8430] direct_splice_actor+0x1fd/0x580 [ 142.048885][ T8430] ? kmsan_get_metadata+0x4f/0x180 [ 142.053996][ T8430] splice_direct_to_actor+0x6b2/0xf50 [ 142.059364][ T8430] ? do_splice_direct+0x580/0x580 [ 142.064403][ T8430] do_splice_direct+0x342/0x580 [ 142.069291][ T8430] do_sendfile+0x101b/0x1d40 [ 142.074852][ T8430] __se_sys_sendfile64+0x2bb/0x360 [ 142.080051][ T8430] ? kmsan_get_metadata+0x4f/0x180 [ 142.085173][ T8430] __x64_sys_sendfile64+0x56/0x70 [ 142.090201][ T8430] do_syscall_64+0xb0/0x150 [ 142.094689][ T8430] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 142.100568][ T8430] RIP: 0033:0x4403d9 [ 142.104450][ T8430] Code: Bad RIP value. [ 142.108496][ T8430] RSP: 002b:00007ffe9d02fed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 142.116893][ T8430] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403d9 [ 142.124984][ T8430] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005 [ 142.132952][ T8430] RBP: 00000000006ca018 R08: 65732f636f72702f R09: 65732f636f72702f [ 142.140920][ T8430] R10: 0000000000000045 R11: 0000000000000246 R12: 0000000000401c40 [ 142.148876][ T8430] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 142.158153][ T8430] Kernel Offset: 0x2400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 142.169687][ T8430] Rebooting in 86400 seconds..