CPU: 0 PID: 4039 Comm: syz-executor.0 Not tainted 5.18.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ===================================================== BUG: KMSAN: uninit-value in __is_kernel include/asm-generic/sections.h:221 [inline] BUG: KMSAN: uninit-value in is_kernel include/linux/kallsyms.h:36 [inline] BUG: KMSAN: uninit-value in is_ksym_addr include/linux/kallsyms.h:44 [inline] BUG: KMSAN: uninit-value in kallsyms_lookup_buildid+0x1ee/0xb10 kernel/kallsyms.c:342 __is_kernel include/asm-generic/sections.h:221 [inline] is_kernel include/linux/kallsyms.h:36 [inline] is_ksym_addr include/linux/kallsyms.h:44 [inline] kallsyms_lookup_buildid+0x1ee/0xb10 kernel/kallsyms.c:342 __sprint_symbol+0x166/0x650 kernel/kallsyms.c:455 sprint_symbol+0x7c/0x90 kernel/kallsyms.c:498 symbol_string+0x302/0x6e0 lib/vsprintf.c:1023 pointer+0x1356/0x1f70 lib/vsprintf.c:2410 vsnprintf+0x1a9b/0x3650 lib/vsprintf.c:2810 vprintk_store+0x537/0x2150 kernel/printk/printk.c:2158 vprintk_emit+0x28b/0xab0 kernel/printk/printk.c:2256 vprintk_default+0x86/0xa0 kernel/printk/printk.c:2283 vprintk+0x15f/0x180 kernel/printk/printk_safe.c:50 _printk+0x18d/0x1cf kernel/printk/printk.c:2293 show_ip arch/x86/kernel/dumpstack.c:142 [inline] show_iret_regs+0x135/0x2e0 arch/x86/kernel/dumpstack.c:149 __show_regs+0x6d/0x1040 arch/x86/kernel/process_64.c:74 show_regs+0xbc/0x170 arch/x86/kernel/dumpstack.c:463 __warn+0x3f1/0x780 kernel/panic.c:596 report_bug+0x885/0xa80 lib/bug.c:199 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:315 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:335 asm_exc_invalid_op+0x12/0x20 __alloc_pages+0x762/0x1090 mm/page_alloc.c:5400 alloc_pages+0xa08/0xd50 kmalloc_order mm/slab_common.c:953 [inline] kmalloc_order_trace+0xd8/0x590 mm/slab_common.c:969 kmalloc_large include/linux/slab.h:510 [inline] __kmalloc+0x954/0x12a0 mm/slub.c:4418 kmalloc include/linux/slab.h:586 [inline] kzalloc include/linux/slab.h:714 [inline] __v9fs_get_acl+0xf3/0x380 fs/9p/acl.c:28 v9fs_get_acl+0x110/0x630 fs/9p/acl.c:62 v9fs_mount+0x1218/0x1460 fs/9p/vfs_super.c:184 legacy_get_tree+0x163/0x2e0 fs/fs_context.c:610 vfs_get_tree+0xd8/0x5d0 fs/super.c:1497 do_new_mount+0x7b5/0x16f0 fs/namespace.c:3040 path_mount+0x1021/0x28b0 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x8a8/0x9d0 fs/namespace.c:3568 __ia32_sys_mount+0x157/0x1b0 fs/namespace.c:3568 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c Local variable ecode created at: p9_check_errors+0x68/0xc60 net/9p/client.c:500 p9_client_rpc+0xde9/0x1460 net/9p/client.c:795 CPU: 0 PID: 4039 Comm: syz-executor.0 Not tainted 5.18.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================