https://bugzilla.kernel.org/show_bug.cgi?id=205885
Bug ID: 205885 Summary: BUG: KASAN: null-ptr-deref in strncpy+0x3c/0x60 Product: Platform Specific/Hardware Version: 2.5 Kernel Version: 5.5-rc2 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 286331 --> https://bugzilla.kernel.org/attachment.cgi?id=286331&action=edit screenshot (5.5-rc2, PowerMac G4 DP) I get this hit at booting kernel 5.5-rc2 on my G4 DP: [...] BUG: KASAN: null-ptr-deref in strncpy+0x3c/0x60 Read of size 1 at addr 00000000 by task swapper/0/1 CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.5.0-rc2-PowerMacG4 Call Trace: [ee8edd78] [c07819e0] dump_stack+0xbc/0x118 (unreliable) [ee8edda8] [c0244b48] __kasan_report+0x174/0x180 [ee8edde8] [c07949dc] strncpy+0x3c/0x60 [ee8ede18] [c0b6979c] mount_block_root+0x200/0x3e0 [ee8edef8] [c0b69b74] prepare_namespace+0x164/0x174 [ee8edf18] [c0005f3c] kernel_init+0x14/0xf0 [ee8edf38] [c001a348] ret_from_kernel_thread+0x14/0x1c ================================================================= BUG: Kernel NULL pointer dereference on read at 0x0000000 Faulting instruction address: 0xc07949dc Oops: Kernel access of bad area sig: 11 (#1] [...] For details see screenshot (I appled a median filter but tesseract still was not able to make much text out of it). -- You are receiving this mail because: You are watching the assignee of the bug.