Reported in bugzilla, forwarding to the mail lists and maintainers. -Frank -------- Forwarded Message -------- Subject: [Bug 214867] New: UBSAN: shift-out-of-bounds in drivers/of/unittest.c:1933:36 Date: Fri, 29 Oct 2021 13:59:02 +0000 From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx https://bugzilla.kernel.org/show_bug.cgi?id=214867 Bug ID: 214867 Summary: UBSAN: shift-out-of-bounds in drivers/of/unittest.c:1933:36 Product: Platform Specific/Hardware Version: 2.5 Kernel Version: 5.15-rc7 Hardware: PPC-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: PPC-64 Assignee: platform_ppc-64@xxxxxxxxxxxxxxxxxxxx Reporter: erhard_f@xxxxxxxxxxx CC: bugzilla.kernel.org@xxxxxxxxxxx Regression: No Created attachment 299361 --> https://bugzilla.kernel.org/attachment.cgi?id=299361&action=edit kernel dmesg (kernel 5.15-rc7, Talos II) UBSAN catches this at boot on my Talos II. [...] ### dt-test ### EXPECT / : GPIO line <<int>> (line-C-input) hogged as input ================================================================================ UBSAN: shift-out-of-bounds in drivers/of/unittest.c:1933:36 shift exponent -1 is negative CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.15.0-rc7-TalosII #1 Call Trace: [c000000004163700] [c0000000008ffaa8] .dump_stack_lvl+0xa4/0x100 (unreliable) [c000000004163790] [c0000000008fb46c] .ubsan_epilogue+0x10/0x70 [c000000004163800] [c0000000008fb270] .__ubsan_handle_shift_out_of_bounds+0x1f0/0x34c [c000000004163910] [c000000000ad94a0] .of_unittest_untrack_overlay+0x6c/0xe0 [c0000000041639a0] [c000000002098ff8] .of_unittest+0x4c50/0x59f8 [c000000004163b60] [c000000000011b5c] .do_one_initcall+0x7c/0x4f0 [c000000004163c50] [c00000000200300c] .kernel_init_freeable+0x704/0x858 [c000000004163d90] [c000000000012730] .kernel_init+0x20/0x190 [c000000004163e10] [c00000000000ce78] .ret_from_kernel_thread+0x58/0x60 ================================================================================ ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status [...] -- You may reply to this email to add a comment. You are receiving this mail because: You are on the CC list for the bug.
