linux-kernel - 6.1.48 regression at boot : WARNING: CPU: 0 PID: 0 at arch/x86/kernel/alternative.c:572 apply

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <3d6fbd04-2861-91a8-938c-45195f307eed@gmx.de>
Date:   Sat, 26 Aug 2023 15:47:13 +0200
From:   Toralf Förster <toralf.foerster@....de>
To:     Linux Kernel <linux-kernel@...r.kernel.org>
Subject: 6.1.48 regression at boot : WARNING: CPU: 0 PID: 0 at
 arch/x86/kernel/alternative.c:572 apply_returns+0x1e4/0x210


I do get a

missing return thunk: 0xffffffff948a73fe-srso_untrain_ret+0x0/0x2: e9 7b 
92 35 ff
WARNING: CPU: 0 PID: 0 at arch/x86/kernel/alternative.c:572 
apply_returns+0x1e4/0x210
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G                T  6.1.48 #38
Hardware name: LENOVO 21J5002FGE/21J5002FGE, BIOS R23ET60W (1.30 ) 
09/14/2022
RIP: 0010:apply_returns+0x1e4/0x210
Code: 36 01 00 0f 85 f7 fe ff ff 49 89 d8 b9 05 00 00 00 4c 89 f2 48 89 
de 48 c7 c7 e8 7e ff 93 c6 05 22 7d 36 01 01 e8 8c a9 09 00 <0f> 0b e9 
cf fe ff ff c7 84 24 81 00 00 00 cc cc cc cc 42 c7 44 38
RSP: 0000:ffffffff94203e00 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff948a73fe RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff9488601c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff948866e8
R13: cccccccccccccccc R14: ffffffff93c0067e R15: ffffffff94219118
FS:  0000000000000000(0000) GS:ffff97dcdee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff97d6f4c01000 CR3: 0000000234210000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
  <TASK>
  ? __warn+0x6f/0xc0
  ? apply_returns+0x1e4/0x210
  ? report_bug+0xdb/0x140
  ? handle_bug+0x3c/0x70
  ? exc_invalid_op+0x17/0x80
  ? asm_exc_invalid_op+0x1a/0x20
  ? retbleed_return_thunk+0x7e/0x7e
  ? apply_returns+0x1e4/0x210
  ? _raw_spin_unlock_irqrestore+0xd/0x30
  alternative_instructions+0x68/0x1e1
  arch_cpu_finalize_init+0x48/0x9a
  start_kernel+0x789/0x877
  secondary_startup_64_no_verify+0xd3/0xdb
  </TASK>
---[ end trace 0000000000000000 ]---

here at a

Linux p14s 6.1.48 #38 SMP Sat Aug 26 15:41:04 CEST 2023 x86_64 AMD Ryzen 
7 PRO 6850U with Radeon Graphics AuthenticAMD GNU/Linux

Otherwise the kernel seems to work fine.
-- 
Toralf

Download attachment "OpenPGP_signature" of type "application/pgp-signature" (237 bytes)