https://bugzilla.kernel.org/show_bug.cgi?id=208181
Bug ID: 208181 Summary: BUG: KASAN: stack-out-of-bounds in strcmp+0x58/0xd8 Product: Platform Specific/Hardware Version: 2.5 Kernel Version: 5.8-rc1 Hardware: PPC-32 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: PPC-32 Assignee: platform_ppc...@kernel-bugs.osdl.org Reporter: erhar...@mailbox.org Regression: No Created attachment 289659 --> https://bugzilla.kernel.org/attachment.cgi?id=289659&action=edit dmesg (5.8-rc1, INLINE KASAN, PowerMac G4 DP) The G4 DP boots up and is useable, though I get this at early boot: [...] Jun 15 11:41:11 T600 kernel: setbat: no BAT available for mapping 0x2a000000 Jun 15 11:41:11 T600 kernel: setbat: no BAT available for mapping 0x2c000000 Jun 15 11:41:11 T600 kernel: KASAN init done Jun 15 11:41:11 T600 kernel: ================================================================== Jun 15 11:41:11 T600 kernel: BUG: KASAN: stack-out-of-bounds in strcmp+0x58/0xd8 Jun 15 11:41:11 T600 kernel: Read of size 1 at addr c11c1a80 by task swapper/0 Jun 15 11:41:11 T600 kernel: Jun 15 11:41:11 T600 kernel: CPU: 0 PID: 0 Comm: swapper Not tainted 5.8.0-rc1-PowerMacG4 #2 Jun 15 11:41:11 T600 kernel: Call Trace: Jun 15 11:41:11 T600 kernel: [c1ae97d0] [c0a2069c] dump_stack+0xfc/0x158 (unreliable) Jun 15 11:41:11 T600 kernel: [c1ae9800] [c04ac5cc] print_address_description.isra.0+0x30/0x3fc Jun 15 11:41:11 T600 kernel: [c1ae9870] [c04acb28] kasan_report+0x110/0x170 Jun 15 11:41:11 T600 kernel: [c1ae98b0] [c0a44c00] strcmp+0x58/0xd8 Jun 15 11:41:11 T600 kernel: [c1ae98d0] [c0170790] register_lock_class+0xfa4/0x10a0 Jun 15 11:41:11 T600 kernel: [c1ae9990] [c0170a34] __lock_acquire+0x1a8/0x382c Jun 15 11:41:11 T600 kernel: [c1ae9b40] [c016f398] lock_acquire+0x5e0/0x854 Jun 15 11:41:11 T600 kernel: [c1ae9c00] [c1144014] _raw_spin_lock_irqsave+0x48/0x70 Jun 15 11:41:11 T600 kernel: [c1ae9c20] [c0ccbe84] of_find_property+0x2c/0x5c Jun 15 11:41:11 T600 kernel: [c1ae9c50] [c0ccbec8] of_get_property+0x14/0x6c Jun 15 11:41:11 T600 kernel: [c1ae9c70] [c0cdbcd8] unflatten_dt_nodes+0xc4c/0xcdc Jun 15 11:41:11 T600 kernel: [c1ae9ec0] [c0cdbe90] __unflatten_device_tree+0x114/0x1e0 Jun 15 11:41:11 T600 kernel: [c1ae9ef0] [c184a294] unflatten_device_tree+0x38/0x54 Jun 15 11:41:11 T600 kernel: [c1ae9f10] [c1808600] setup_arch+0xc8/0x630 Jun 15 11:41:11 T600 kernel: [c1ae9f50] [c1803268] start_kernel+0xcc/0x4cc Jun 15 11:41:11 T600 kernel: [c1ae9ff0] [000038a0] 0x38a0 Jun 15 11:41:11 T600 kernel: Jun 15 11:41:11 T600 kernel: The buggy address belongs to the variable: Jun 15 11:41:11 T600 kernel: __func__.22122+0x80/0x320 Jun 15 11:41:11 T600 kernel: Jun 15 11:41:11 T600 kernel: Memory state around the buggy address: Jun 15 11:41:11 T600 kernel: c11c1980: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 f1 f1 Jun 15 11:41:11 T600 kernel: c11c1a00: 04 f2 04 f2 04 f2 04 f2 04 f2 00 00 00 04 f2 f2 Jun 15 11:41:11 T600 kernel: >c11c1a80: f2 f2 00 00 00 04 f3 f3 f3 f3 00 00 00 00 00 00 Jun 15 11:41:11 T600 kernel: ^ Jun 15 11:41:11 T600 kernel: c11c1b00: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 Jun 15 11:41:11 T600 kernel: c11c1b80: 00 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 Jun 15 11:41:11 T600 kernel: ================================================================== Jun 15 11:41:11 T600 kernel: Disabling lock debugging due to kernel taint [...] -- You are receiving this mail because: You are watching the assignee of the bug.