syzbot has found a reproducer for the following issue on: HEAD commit: 31f4104e392a Merge tag 'locking_urgent_for_v6.4_rc2' of gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11768616280000 kernel config: https://syzkaller.appspot.com/x/.config?x=8bc832f563d8bf38 dashboard link: https://syzkaller.appspot.com/bug?extid=a6abcf08bad8b18fd198 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1737e3be280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=149d4c06280000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-31f4104e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/967f88e07e18/vmlinux-31f4104e.xz kernel image: https://storage.googleapis.com/syzbot-assets/b4e92e4df24e/bzImage-31f4104e.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a6abcf08bad8b18fd198@xxxxxxxxxxxxxxxxxxxxxxxxx general protection fault, maybe for address 0xffffffff8c12a198: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 5136 Comm: syz-executor269 Not tainted 6.4.0-rc1-syzkaller-00190-g31f4104e392a #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:__aria_aesni_avx_gfni_crypt_16way+0x2a6/0x4f40 arch/x86/crypto/aria-aesni-avx-asm_64.S:1164 Code: d0 10 c4 e2 69 00 d7 c5 11 ef ea c5 e9 72 d0 08 c4 e2 69 00 d7 c5 09 ef f2 c4 e2 79 00 d7 c5 01 ef fa c5 f9 6f 05 7a 15 c9 0a <c5> f9 6f 0d 6a 15 c9 0a c5 f9 6f 15 7a 15 c9 0a c5 f9 6f 1d 52 15 RSP: 0018:ffffc9000384f210 EFLAGS: 00010286 RAX: ffff888026364890 RBX: 0000000000000000 RCX: ffff888026364890 RDX: ffff888026364890 RSI: ffff888026364890 RDI: ffff888023c79028 RBP: ffff88801fb3c900 R08: ffff888026364910 R09: ffff888023c79028 R10: ffff88801fb3c800 R11: ffff88801fb3c800 R12: ffff88801fb3c900 R13: ffff888023c79028 R14: dffffc0000000000 R15: ffff888026364890 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:0000000056fc72c0 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f29a06956a8 CR3: 000000001f222000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> aria_aesni_avx_gfni_ctr_crypt_16way+0x1d/0x110 arch/x86/crypto/aria-aesni-avx-asm_64.S:1339 aria_avx_ctr_encrypt+0x180/0x680 arch/x86/crypto/aria_aesni_avx_glue.c:103 crypto_skcipher_encrypt+0xbc/0x100 crypto/skcipher.c:653 crypto_skcipher_encrypt+0xbc/0x100 crypto/skcipher.c:653 crypto_gcm_encrypt+0x393/0x4b0 crypto/gcm.c:459 crypto_aead_encrypt+0xbc/0x100 crypto/aead.c:121 tls_do_encryption net/tls/tls_sw.c:544 [inline] tls_push_record+0x12d8/0x30f0 net/tls/tls_sw.c:777 bpf_exec_tx_verdict+0xdf0/0x1210 net/tls/tls_sw.c:817 tls_sw_sendmsg+0x100b/0x1850 net/tls/tls_sw.c:1033 inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:651 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg+0xde/0x190 net/socket.c:747 sock_write_iter+0x295/0x3d0 net/socket.c:1140 call_write_iter include/linux/fs.h:1868 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x945/0xd50 fs/read_write.c:584 ksys_write+0x1ec/0x250 fs/read_write.c:637 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f45579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ff8f022c EFLAGS: 00000246 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000580 RDX: 0000000000000278 RSI: 00000000f7fe8000 RDI: 0000000000000000 RBP: 00000000ff8f0290 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__aria_aesni_avx_gfni_crypt_16way+0x2a6/0x4f40 arch/x86/crypto/aria-aesni-avx-asm_64.S:1164 Code: d0 10 c4 e2 69 00 d7 c5 11 ef ea c5 e9 72 d0 08 c4 e2 69 00 d7 c5 09 ef f2 c4 e2 79 00 d7 c5 01 ef fa c5 f9 6f 05 7a 15 c9 0a <c5> f9 6f 0d 6a 15 c9 0a c5 f9 6f 15 7a 15 c9 0a c5 f9 6f 1d 52 15 RSP: 0018:ffffc9000384f210 EFLAGS: 00010286 RAX: ffff888026364890 RBX: 0000000000000000 RCX: ffff888026364890 RDX: ffff888026364890 RSI: ffff888026364890 RDI: ffff888023c79028 RBP: ffff88801fb3c900 R08: ffff888026364910 R09: ffff888023c79028 R10: ffff88801fb3c800 R11: ffff88801fb3c800 R12: ffff88801fb3c900 R13: ffff888023c79028 R14: dffffc0000000000 R15: ffff888026364890 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:0000000056fc72c0 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f29a06956a8 CR3: 000000001f222000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: d0 10 rclb (%rax) 2: c4 e2 69 00 d7 vpshufb %xmm7,%xmm2,%xmm2 7: c5 11 ef ea vpxor %xmm2,%xmm13,%xmm13 b: c5 e9 72 d0 08 vpsrld $0x8,%xmm0,%xmm2 10: c4 e2 69 00 d7 vpshufb %xmm7,%xmm2,%xmm2 15: c5 09 ef f2 vpxor %xmm2,%xmm14,%xmm14 19: c4 e2 79 00 d7 vpshufb %xmm7,%xmm0,%xmm2 1e: c5 01 ef fa vpxor %xmm2,%xmm15,%xmm15 22: c5 f9 6f 05 7a 15 c9 vmovdqa 0xac9157a(%rip),%xmm0 # 0xac915a4 29: 0a * 2a: c5 f9 6f 0d 6a 15 c9 vmovdqa 0xac9156a(%rip),%xmm1 # 0xac9159c <-- trapping instruction 31: 0a 32: c5 f9 6f 15 7a 15 c9 vmovdqa 0xac9157a(%rip),%xmm2 # 0xac915b4 39: 0a 3a: c5 .byte 0xc5 3b: f9 stc 3c: 6f outsl %ds:(%rsi),(%dx) 3d: 1d .byte 0x1d 3e: 52 push %rdx 3f: 15 .byte 0x15 --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.
