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BUG: KASAN: slab-out-of-bounds in __trace_probe_log_err+0x290/0x2a0 kernel/trace/trace_probe.c:199
Write of size 1 at addr ffff888105dd5f7f by task syz-executor185/545

CPU: 1 PID: 545 Comm: syz-executor185 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x100/0x140 mm/kasan/report.c:452
 __asan_report_store1_noabort+0x17/0x20 mm/kasan/report_generic.c:311
 __trace_probe_log_err+0x290/0x2a0 kernel/trace/trace_probe.c:199
 trace_uprobe_create+0x355/0xb90 kernel/trace/trace_uprobe.c:588
 create_or_delete_trace_uprobe+0x89/0xc0 kernel/trace/trace_uprobe.c:731
 trace_run_command kernel/trace/trace.c:9575 [inline]
 trace_parse_run_command+0x296/0x450 kernel/trace/trace.c:9634
 probes_write+0x34/0x40 kernel/trace/trace_uprobe.c:800
 vfs_write+0x344/0xd70 fs/read_write.c:603
 ksys_write+0x14a/0x260 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:667
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fd7afb17639
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff00665c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 6e69636172742f2e RCX: 00007fd7afb17639
RDX: 0000000000000015 RSI: 0000200000000700 RDI: 0000000000000003
RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009
R10: 0000000000000009 R11: 0000000000000246 R12: 00000000000082e3
R13: 00007fff00665c6c R14: 00007fff00665c80 R15: 00007fff00665c70

Allocated by task 1:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 ____kasan_kmalloc mm/kasan/common.c:509 [inline]
 __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 __kmalloc+0x19f/0x330 mm/slub.c:4038
 kmalloc include/linux/slab.h:560 [inline]
 kzalloc include/linux/slab.h:667 [inline]
 acpi_os_allocate_zeroed include/acpi/platform/aclinuxex.h:57 [inline]
 acpi_ns_get_normalized_pathname+0xd7/0x170 drivers/acpi/acpica/nsnames.c:306
 acpi_ns_evaluate+0x206/0xa20 drivers/acpi/acpica/nseval.c:96
 acpi_evaluate_object+0x588/0xa60 drivers/acpi/acpica/nsxfeval.c:354
 acpi_evaluate_integer+0x103/0x1e0 drivers/acpi/utils.c:279
 acpi_find_child_device+0x11a/0x650 drivers/acpi/glue.c:128
 acpi_pci_find_companion+0xde/0x120 drivers/pci/pci-acpi.c:1171
 acpi_device_notify drivers/acpi/glue.c:308 [inline]
 acpi_platform_notify+0x1bd/0x3d0 drivers/acpi/glue.c:367
 device_platform_notify drivers/base/core.c:1955 [inline]
 device_add+0x415/0xc00 drivers/base/core.c:3213
 pci_device_add+0x1661/0x1fa0 drivers/pci/probe.c:2548
 pci_scan_single_device+0x354/0x410 drivers/pci/probe.c:2566
 pci_scan_slot+0x19b/0x7d0 drivers/pci/probe.c:2641
 pci_scan_child_bus_extend+0x54/0x850 drivers/pci/probe.c:2858
 pci_scan_child_bus+0x17/0x20 drivers/pci/probe.c:2988
 acpi_pci_root_create+0xb59/0xd60 drivers/acpi/pci_root.c:937
 pci_acpi_scan_root+0x2a9/0x500 arch/x86/pci/acpi.c:368
 acpi_pci_root_add+0xb64/0x1590 drivers/acpi/pci_root.c:607
 acpi_scan_attach_handler drivers/acpi/scan.c:1988 [inline]
 acpi_bus_attach+0x699/0xbc0 drivers/acpi/scan.c:2032
 acpi_bus_attach+0x204/0xbc0 drivers/acpi/scan.c:2053
 acpi_bus_attach+0x204/0xbc0 drivers/acpi/scan.c:2053
 acpi_bus_scan+0xd8/0x120 drivers/acpi/scan.c:2105
 acpi_scan_init+0x1f5/0x6fc drivers/acpi/scan.c:2270
 acpi_init+0x170/0x223 drivers/acpi/bus.c:1257
 do_one_initcall+0x205/0x5e0 init/main.c:1211
 do_initcall_level+0x174/0x2dc init/main.c:1284
 do_initcalls+0x50/0x92 init/main.c:1300
 do_basic_setup+0x88/0x8f init/main.c:1320
 kernel_init_freeable+0x28c/0x3c3 init/main.c:1524
 kernel_init+0x11/0x1a0 init/main.c:1411
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298

The buggy address belongs to the object at ffff888105dd5f40
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 31 bytes to the right of
 32-byte region [ffff888105dd5f40, ffff888105dd5f60)
The buggy address belongs to the page:
page:ffffea0004177540 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105dd5
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea0004197b80 0000000600000006 ffff888100043980
raw: 0000000000000000 0000000080400040 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, ts 1583416660, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x176/0x190 mm/page_alloc.c:2462
 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1813 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1874
 new_slab_objects mm/slub.c:2632 [inline]
 ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796
 __slab_alloc+0x63/0xa0 mm/slub.c:2836
 slab_alloc_node mm/slub.c:2918 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 kmem_cache_alloc_trace+0x1a8/0x2e0 mm/slub.c:2977
 kmalloc include/linux/slab.h:555 [inline]
 kzalloc include/linux/slab.h:667 [inline]
 pci_bus_add_resource+0x5a/0x1c0 drivers/pci/bus.c:52
 pci_register_host_bridge+0xc64/0x1060 drivers/pci/probe.c:971
 pci_create_root_bus+0x32b/0x3c0 drivers/pci/probe.c:3029
 acpi_pci_root_create+0x536/0xd60 drivers/acpi/pci_root.c:907
 pci_acpi_scan_root+0x2a9/0x500 arch/x86/pci/acpi.c:368
 acpi_pci_root_add+0xb64/0x1590 drivers/acpi/pci_root.c:607
 acpi_scan_attach_handler drivers/acpi/scan.c:1988 [inline]
 acpi_bus_attach+0x699/0xbc0 drivers/acpi/scan.c:2032
 acpi_bus_attach+0x204/0xbc0 drivers/acpi/scan.c:2053
 acpi_bus_attach+0x204/0xbc0 drivers/acpi/scan.c:2053
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888105dd5e00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc
 ffff888105dd5e80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
>ffff888105dd5f00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
                                                                ^
 ffff888105dd5f80: 00 00 06 fc fc fc fc fc fa fb fb fb fc fc fc fc
 ffff888105dd6000: 00 00 00 00 00 00 00 00 00 fc fc fc fc 00 00 00
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