Date
June 23, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.210060] ================================================================== [ 32.210190] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 32.210315] Read of size 1 at addr fff00000c76e9000 by task kunit_try_catch/152 [ 32.210426] [ 32.210499] CPU: 1 UID: 0 PID: 152 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250623 #1 PREEMPT [ 32.210690] Tainted: [B]=BAD_PAGE, [N]=TEST [ 32.210761] Hardware name: linux,dummy-virt (DT) [ 32.210835] Call trace: [ 32.210897] show_stack+0x20/0x38 (C) [ 32.211234] dump_stack_lvl+0x8c/0xd0 [ 32.211406] print_report+0x118/0x608 [ 32.211530] kasan_report+0xdc/0x128 [ 32.211638] __asan_report_load1_noabort+0x20/0x30 [ 32.211754] kmalloc_node_oob_right+0x2f4/0x330 [ 32.211882] kunit_try_run_case+0x170/0x3f0 [ 32.212923] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.213111] kthread+0x328/0x630 [ 32.214204] ret_from_fork+0x10/0x20 [ 32.214342] [ 32.214655] Allocated by task 152: [ 32.214882] kasan_save_stack+0x3c/0x68 [ 32.215008] kasan_save_track+0x20/0x40 [ 32.215445] kasan_save_alloc_info+0x40/0x58 [ 32.215644] __kasan_kmalloc+0xd4/0xd8 [ 32.215865] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 32.216046] kmalloc_node_oob_right+0xbc/0x330 [ 32.216144] kunit_try_run_case+0x170/0x3f0 [ 32.217182] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.217659] kthread+0x328/0x630 [ 32.217749] ret_from_fork+0x10/0x20 [ 32.217854] [ 32.217902] The buggy address belongs to the object at fff00000c76e8000 [ 32.217902] which belongs to the cache kmalloc-4k of size 4096 [ 32.218049] The buggy address is located 0 bytes to the right of [ 32.218049] allocated 4096-byte region [fff00000c76e8000, fff00000c76e9000) [ 32.218211] [ 32.218344] The buggy address belongs to the physical page: [ 32.218482] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076e8 [ 32.219862] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 32.220239] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 32.220622] page_type: f5(slab) [ 32.220740] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 32.220856] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 32.221090] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 32.221447] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 32.221634] head: 0bfffe0000000003 ffffc1ffc31dba01 00000000ffffffff 00000000ffffffff [ 32.221769] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 32.221877] page dumped because: kasan: bad access detected [ 32.221953] [ 32.222266] Memory state around the buggy address: [ 32.222360] fff00000c76e8f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.222471] fff00000c76e8f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.223533] >fff00000c76e9000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.223633] ^ [ 32.224176] fff00000c76e9080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.224315] fff00000c76e9100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.224405] ==================================================================
[ 21.051201] ================================================================== [ 21.051606] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 21.052694] Read of size 1 at addr ffff88810385b000 by task kunit_try_catch/169 [ 21.053262] [ 21.053517] CPU: 0 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) [ 21.053600] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.053619] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.053648] Call Trace: [ 21.053669] <TASK> [ 21.053694] dump_stack_lvl+0x73/0xb0 [ 21.053743] print_report+0xd1/0x650 [ 21.053773] ? __virt_addr_valid+0x1db/0x2d0 [ 21.053806] ? kmalloc_node_oob_right+0x369/0x3c0 [ 21.053994] ? kasan_complete_mode_report_info+0x2a/0x200 [ 21.054033] ? kmalloc_node_oob_right+0x369/0x3c0 [ 21.054057] kasan_report+0x141/0x180 [ 21.054086] ? kmalloc_node_oob_right+0x369/0x3c0 [ 21.054126] __asan_report_load1_noabort+0x18/0x20 [ 21.054161] kmalloc_node_oob_right+0x369/0x3c0 [ 21.054197] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 21.054220] ? __schedule+0x10cc/0x2b60 [ 21.054239] ? __pfx_read_tsc+0x10/0x10 [ 21.054258] ? ktime_get_ts64+0x86/0x230 [ 21.054280] kunit_try_run_case+0x1a5/0x480 [ 21.054303] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.054324] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 21.054345] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.054365] ? __kthread_parkme+0x82/0x180 [ 21.054402] ? preempt_count_sub+0x50/0x80 [ 21.054426] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.054449] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.054470] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.054491] kthread+0x337/0x6f0 [ 21.054509] ? trace_preempt_on+0x20/0xc0 [ 21.054531] ? __pfx_kthread+0x10/0x10 [ 21.054550] ? _raw_spin_unlock_irq+0x47/0x80 [ 21.054569] ? calculate_sigpending+0x7b/0xa0 [ 21.054591] ? __pfx_kthread+0x10/0x10 [ 21.054610] ret_from_fork+0x116/0x1d0 [ 21.054627] ? __pfx_kthread+0x10/0x10 [ 21.054646] ret_from_fork_asm+0x1a/0x30 [ 21.054675] </TASK> [ 21.054688] [ 21.064156] Allocated by task 169: [ 21.064311] kasan_save_stack+0x45/0x70 [ 21.064481] kasan_save_track+0x18/0x40 [ 21.064742] kasan_save_alloc_info+0x3b/0x50 [ 21.065024] __kasan_kmalloc+0xb7/0xc0 [ 21.065286] __kmalloc_cache_node_noprof+0x188/0x420 [ 21.066776] kmalloc_node_oob_right+0xab/0x3c0 [ 21.067017] kunit_try_run_case+0x1a5/0x480 [ 21.067181] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.067421] kthread+0x337/0x6f0 [ 21.067668] ret_from_fork+0x116/0x1d0 [ 21.068826] ret_from_fork_asm+0x1a/0x30 [ 21.069120] [ 21.069214] The buggy address belongs to the object at ffff88810385a000 [ 21.069214] which belongs to the cache kmalloc-4k of size 4096 [ 21.069427] The buggy address is located 0 bytes to the right of [ 21.069427] allocated 4096-byte region [ffff88810385a000, ffff88810385b000) [ 21.069716] [ 21.069805] The buggy address belongs to the physical page: [ 21.070348] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103858 [ 21.070796] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.070940] flags: 0x200000000000040(head|node=0|zone=2) [ 21.071130] page_type: f5(slab) [ 21.071201] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 21.071317] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 21.071683] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 21.072721] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 21.073411] head: 0200000000000003 ffffea00040e1601 00000000ffffffff 00000000ffffffff [ 21.073996] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 21.074725] page dumped because: kasan: bad access detected [ 21.075232] [ 21.075400] Memory state around the buggy address: [ 21.075763] ffff88810385af00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.076319] ffff88810385af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.076799] >ffff88810385b000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.077602] ^ [ 21.078135] ffff88810385b080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.078407] ffff88810385b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.078865] ==================================================================