====================================== | [ 719.697364][T11704] netdevsim netdevsim1057 eni1057np1: renamed from eth1 | [ 719.803414][T11709] netdevsim netdevsim5417 eni5417np1: renamed from eth2 | [ 720.927355][T11678] Oops: general protection fault, probably for non-canonical address 0xed6d696d6d6d6d71: 0000 [#1] PREEMPT SMP KASAN NOPTI | [ 720.927869][T11678] KASAN: maybe wild-memory-access in range [0x6b6b6b6b6b6b6b88-0x6b6b6b6b6b6b6b8f] [ 720.928530][T11678] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [720.928765][T11678] RIP: 0010:full_proxy_write (fs/debugfs/file.c:394 (discriminator 5)) [ 720.928969][T11678] Code: ea 03 80 3c 02 00 0f 85 df 00 00 00 4c 8b 23 4d 85 e4 74 54 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 20 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c8 00 00 00 49 8b 44 24 20 48 89 ef 4c 89 fa 4c All code ======== 0: ea (bad) 1: 03 80 3c 02 00 0f add 0xf00023c(%rax),%eax 7: 85 df test %ebx,%edi 9: 00 00 add %al,(%rax) b: 00 4c 8b 23 add %cl,0x23(%rbx,%rcx,4) f: 4d 85 e4 test %r12,%r12 12: 74 54 je 0x68 14: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1b: fc ff df 1e: 49 8d 7c 24 20 lea 0x20(%r12),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx 2a:* 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 c8 00 00 00 jne 0xfc 34: 49 8b 44 24 20 mov 0x20(%r12),%rax 39: 48 89 ef mov %rbp,%rdi 3c: 4c 89 fa mov %r15,%rdx 3f: 4c rex.WR Code starting with the faulting instruction =========================================== 0: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 4: 0f 85 c8 00 00 00 jne 0xd2 a: 49 8b 44 24 20 mov 0x20(%r12),%rax f: 48 89 ef mov %rbp,%rdi 12: 4c 89 fa mov %r15,%rdx 15: 4c rex.WR [ 720.929664][T11678] RSP: 0018:ffffc90000987d08 EFLAGS: 00010206 [ 720.929912][T11678] RAX: dffffc0000000000 RBX: ffff888008985c00 RCX: ffffc90000987eb8 [ 720.930197][T11678] RDX: 0d6d6d6d6d6d6d71 RSI: 0000000000000004 RDI: 6b6b6b6b6b6b6b8b [ 720.930484][T11678] RBP: ffff888009342f80 R08: 0000000000000000 R09: fffff52000130f92 [ 720.930765][T11678] R10: 0000000000000003 R11: ffff888009342fd0 R12: 6b6b6b6b6b6b6b6b [ 720.930994][T11678] R13: ffff88800c972008 R14: 0000558e04111f10 R15: 0000000000000002 [ 720.931185][T11678] FS: 00007f2c8d9c1740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000 [ 720.931426][T11678] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 720.931584][T11678] CR2: 0000558e04111f10 CR3: 000000000de62005 CR4: 0000000000772ef0 [ 720.931778][T11678] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 720.931968][T11678] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 720.932158][T11678] PKRU: 55555554 [ 720.932253][T11678] Call Trace: [ 720.932347][T11678] [720.932412][T11678] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) [720.932512][T11678] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) [720.932642][T11678] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) [720.932769][T11678] ? full_proxy_write (fs/debugfs/file.c:394 (discriminator 5)) [720.932897][T11678] ? full_proxy_write (fs/debugfs/file.c:394) [720.933025][T11678] vfs_write (fs/read_write.c:677) [720.933123][T11678] ? __pfx_vfs_write (fs/read_write.c:660) [720.933243][T11678] ? find_held_lock (kernel/locking/lockdep.c:5341) [720.933367][T11678] ? __lock_release (kernel/locking/lockdep.c:5527) [720.933487][T11678] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340) [720.933608][T11678] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [720.933729][T11678] ? __up_read (./arch/x86/include/asm/atomic64_64.h:79 ./include/linux/atomic/atomic-arch-fallback.h:2749 ./include/linux/atomic/atomic-long.h:184 ./include/linux/atomic/atomic-instrumented.h:3317 kernel/locking/rwsem.c:1345) [720.933856][T11678] ? __pfx___up_read (kernel/locking/rwsem.c:1337) [720.933977][T11678] ksys_write (fs/read_write.c:731) [720.934068][T11678] ? __pfx_ksys_write (fs/read_write.c:721) [720.934188][T11678] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340) [720.934312][T11678] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [720.934437][T11678] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 720.934586][T11678] RIP: 0033:0x7f2c8db02b77 [ 720.934716][T11678] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0b 00 or (%rax),%eax 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b7 jmp 0xffffffffffffffc7 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 720.935149][T11678] RSP: 002b:00007ffd4c606298 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 720.935333][T11678] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f2c8db02b77 [ 720.935514][T11678] RDX: 0000000000000002 RSI: 0000558e04111f10 RDI: 0000000000000001 [ 720.935702][T11678] RBP: 0000558e04111f10 R08: 0000000000000000 R09: 00007f2c8db754e0 [ 720.935886][T11678] R10: 00007f2c8db753e0 R11: 0000000000000246 R12: 0000000000000002 Finger prints: full_proxy_write:vfs_write:ksys_write:do_syscall_64