====================================== | [ 311.118344][ T1337] netdevsim netdevsim5417 eni5417np1: renamed from eth0 | [ 311.382517][ T1345] devlink (1345) used greatest stack depth: 23824 bytes left | [ 312.589684][ T1303] Oops: general protection fault, probably for non-canonical address 0xed6d696d6d6d6d71: 0000 [#1] PREEMPT SMP KASAN NOPTI | [ 312.590154][ T1303] KASAN: maybe wild-memory-access in range [0x6b6b6b6b6b6b6b88-0x6b6b6b6b6b6b6b8f] [ 312.590695][ T1303] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 312.590895][ T1303] RIP: 0010:full_proxy_write (fs/debugfs/file.c:394 (discriminator 5)) [ 312.591054][ T1303] 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 [ 312.591595][ T1303] RSP: 0018:ffffc90001407d08 EFLAGS: 00010206 [ 312.591792][ T1303] RAX: dffffc0000000000 RBX: ffff8880090ba000 RCX: ffffc90001407eb8 [ 312.592010][ T1303] RDX: 0d6d6d6d6d6d6d71 RSI: 0000000000000004 RDI: 6b6b6b6b6b6b6b8b [ 312.592231][ T1303] RBP: ffff888004df5fc0 R08: 0000000000000000 R09: fffff52000280f92 [ 312.592456][ T1303] R10: 0000000000000003 R11: ffff888004df6010 R12: 6b6b6b6b6b6b6b6b [ 312.592692][ T1303] R13: ffff88800c988ba0 R14: 000055f363e1af10 R15: 0000000000000002 [ 312.592916][ T1303] FS: 00007f89db635740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000 [ 312.593173][ T1303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 312.593356][ T1303] CR2: 000055f363e1af10 CR3: 00000000099d4002 CR4: 0000000000772ef0 [ 312.593582][ T1303] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 312.593818][ T1303] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 312.594044][ T1303] PKRU: 55555554 [ 312.594148][ T1303] Call Trace: [ 312.594253][ T1303] [ 312.594335][ T1303] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) [ 312.594473][ T1303] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) [ 312.594653][ T1303] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) [ 312.594835][ T1303] ? full_proxy_write (fs/debugfs/file.c:394 (discriminator 5)) [ 312.595002][ T1303] ? full_proxy_write (fs/debugfs/file.c:394) [ 312.595177][ T1303] vfs_write (fs/read_write.c:677) [ 312.595299][ T1303] ? __pfx_vfs_write (fs/read_write.c:660) [ 312.595453][ T1303] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 312.595609][ T1303] ? __lock_release (kernel/locking/lockdep.c:5527) [ 312.595775][ T1303] ? 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) [ 312.595939][ T1303] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 312.596092][ T1303] ? __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) [ 312.596230][ T1303] ? __pfx___up_read (kernel/locking/rwsem.c:1337) [ 312.596369][ T1303] ksys_write (fs/read_write.c:731) [ 312.596477][ T1303] ? __pfx_ksys_write (fs/read_write.c:721) [ 312.596617][ T1303] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340) [ 312.596758][ T1303] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 312.596898][ T1303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 312.597078][ T1303] RIP: 0033:0x7f89db776b77 [ 312.597233][ T1303] 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 [ 312.597726][ T1303] RSP: 002b:00007ffc07563d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 312.597935][ T1303] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f89db776b77 [ 312.598140][ T1303] RDX: 0000000000000002 RSI: 000055f363e1af10 RDI: 0000000000000001 [ 312.598378][ T1303] RBP: 000055f363e1af10 R08: 0000000000000000 R09: 00007f89db7e94e0 [ 312.598619][ T1303] R10: 00007f89db7e93e0 R11: 0000000000000246 R12: 0000000000000002 Finger prints: full_proxy_write:vfs_write:ksys_write:do_syscall_64