Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x87b/0xab0 lib/fault-inject.c:149 ================================================================== BUG: KMSAN: uninit-value in core_kernel_text kernel/extable.c:77 [inline] BUG: KMSAN: uninit-value in kernel_text_address+0x248/0x3a0 kernel/extable.c:127 CPU: 1 PID: 6260 Comm: syz-executor5 Not tainted 4.16.0+ #81 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x14a/0x1d0 lib/dump_stack.c:53 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:676 core_kernel_text kernel/extable.c:77 [inline] kernel_text_address+0x248/0x3a0 kernel/extable.c:127 __kernel_text_address+0x34/0xe0 kernel/extable.c:107 show_trace_log_lvl+0x954/0x1030 arch/x86/kernel/dumpstack.c:175 show_stack+0xfc/0x150 arch/x86/kernel/dumpstack.c:236 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x87b/0xab0 lib/fault-inject.c:149 should_failslab+0x279/0x2a0 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc_node mm/slub.c:2663 [inline] slab_alloc mm/slub.c:2745 [inline] __kmalloc+0xc2/0x350 mm/slub.c:3785 kmalloc include/linux/slab.h:517 [inline] sock_kmalloc+0x14e/0x270 net/core/sock.c:1986 af_alg_alloc_areq+0x85/0x320 crypto/af_alg.c:1098 _skcipher_recvmsg crypto/algif_skcipher.c:75 [inline] skcipher_recvmsg+0x34b/0x1940 crypto/algif_skcipher.c:164 sock_recvmsg_nosec net/socket.c:803 [inline] sock_recvmsg net/socket.c:810 [inline] sock_read_iter+0x405/0x480 net/socket.c:887 do_iter_readv_writev+0x7bb/0x970 include/linux/fs.h:1776 do_iter_read+0x303/0xd70 fs/read_write.c:895 vfs_readv fs/read_write.c:959 [inline] do_readv+0x295/0x5f0 fs/read_write.c:992 SYSC_readv+0x9b/0xb0 fs/read_write.c:1079 SyS_readv+0x56/0x80 fs/read_write.c:1076 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 RIP: 0033:0x455259 RSP: 002b:00007f974c75ac68 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f974c75b6d4 RCX: 0000000000455259 RDX: 0000000000000001 RSI: 00000000206e8ff0 RDI: 0000000000000014 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000015 R13: 000000000000048c R14: 00000000006f9dc0 R15: 0000000000000000 Local variable description: ----flags.i.i.i@rcu_all_qs Variable was created at: rcu_all_qs+0x32/0x1f0 kernel/rcu/tree.c:478 _cond_resched+0x3c/0xd0 kernel/sched/core.c:4935 ==================================================================