__x64_sys_writev+0x4a/0x70 fs/read_write.c:1128
 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
==================================================================
Disabling lock debugging due to kernel taint
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 10508 Comm: syz-executor3 Tainted: G    B             5.3.0-rc3+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x191/0x1f0 lib/dump_stack.c:113
 panic+0x3c9/0xc1e kernel/panic.c:219
 kmsan_report+0x2ca/0x2d0 mm/kmsan/kmsan_report.c:129
 __msan_warning+0x75/0xe0 mm/kmsan/kmsan_instr.c:294
 capi_write+0x759/0xa70 drivers/isdn/capi/capi.c:700
 do_loop_readv_writev fs/read_write.c:717 [inline]
 do_iter_write+0x813/0xdc0 fs/read_write.c:972
 vfs_writev fs/read_write.c:1015 [inline]
 do_writev+0x435/0x900 fs/read_write.c:1058
 __do_sys_writev fs/read_write.c:1131 [inline]
 __se_sys_writev+0x9b/0xb0 fs/read_write.c:1128
 __x64_sys_writev+0x4a/0x70 fs/read_write.c:1128
 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x458019
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f06b30e1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458019
RDX: 0000000000000001 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f06b30e26d4
R13: 00000000004c492e R14: 00000000004dcb18 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..