Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.530469] ================================================================== [ 22.530647] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 22.530807] Write of size 2 at addr fff00000c76c5077 by task kunit_try_catch/176 [ 22.530923] [ 22.531568] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT [ 22.533418] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.533489] Hardware name: linux,dummy-virt (DT) [ 22.533547] Call trace: [ 22.533597] show_stack+0x20/0x38 (C) [ 22.533734] dump_stack_lvl+0x8c/0xd0 [ 22.533963] print_report+0x118/0x608 [ 22.534574] kasan_report+0xdc/0x128 [ 22.535112] kasan_check_range+0x100/0x1a8 [ 22.535379] __asan_memset+0x34/0x78 [ 22.535522] kmalloc_oob_memset_2+0x150/0x2f8 [ 22.535766] kunit_try_run_case+0x170/0x3f0 [ 22.536040] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.536449] kthread+0x328/0x630 [ 22.536829] ret_from_fork+0x10/0x20 [ 22.537038] [ 22.537084] Allocated by task 176: [ 22.537546] kasan_save_stack+0x3c/0x68 [ 22.537788] kasan_save_track+0x20/0x40 [ 22.538032] kasan_save_alloc_info+0x40/0x58 [ 22.538434] __kasan_kmalloc+0xd4/0xd8 [ 22.538528] __kmalloc_cache_noprof+0x16c/0x3c0 [ 22.538660] kmalloc_oob_memset_2+0xb0/0x2f8 [ 22.538862] kunit_try_run_case+0x170/0x3f0 [ 22.539208] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.539430] kthread+0x328/0x630 [ 22.539516] ret_from_fork+0x10/0x20 [ 22.539646] [ 22.539726] The buggy address belongs to the object at fff00000c76c5000 [ 22.539726] which belongs to the cache kmalloc-128 of size 128 [ 22.540026] The buggy address is located 119 bytes inside of [ 22.540026] allocated 120-byte region [fff00000c76c5000, fff00000c76c5078) [ 22.540251] [ 22.540309] The buggy address belongs to the physical page: [ 22.540393] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076c5 [ 22.540547] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.540676] page_type: f5(slab) [ 22.540776] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 22.540904] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 22.541569] page dumped because: kasan: bad access detected [ 22.541739] [ 22.541881] Memory state around the buggy address: [ 22.542011] fff00000c76c4f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.542236] fff00000c76c4f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.542462] >fff00000c76c5000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 22.542826] ^ [ 22.543017] fff00000c76c5080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.543222] fff00000c76c5100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.543337] ==================================================================
[ 13.781589] ================================================================== [ 13.782160] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 13.783197] Write of size 2 at addr ffff888102d90d77 by task kunit_try_catch/192 [ 13.783664] [ 13.783829] CPU: 1 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT(voluntary) [ 13.784576] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.784593] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.784699] Call Trace: [ 13.784719] <TASK> [ 13.784740] dump_stack_lvl+0x73/0xb0 [ 13.784781] print_report+0xd1/0x650 [ 13.784804] ? __virt_addr_valid+0x1db/0x2d0 [ 13.784828] ? kmalloc_oob_memset_2+0x166/0x330 [ 13.784848] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.784868] ? kmalloc_oob_memset_2+0x166/0x330 [ 13.784888] kasan_report+0x141/0x180 [ 13.784908] ? kmalloc_oob_memset_2+0x166/0x330 [ 13.784932] kasan_check_range+0x10c/0x1c0 [ 13.784951] __asan_memset+0x27/0x50 [ 13.784969] kmalloc_oob_memset_2+0x166/0x330 [ 13.784989] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 13.785010] ? __schedule+0x10cc/0x2b30 [ 13.785031] ? __pfx_read_tsc+0x10/0x10 [ 13.785050] ? ktime_get_ts64+0x86/0x230 [ 13.785075] kunit_try_run_case+0x1a5/0x480 [ 13.785098] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.785118] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.785139] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.785159] ? __kthread_parkme+0x82/0x180 [ 13.785180] ? preempt_count_sub+0x50/0x80 [ 13.785204] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.785225] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.785245] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.785265] kthread+0x337/0x6f0 [ 13.785281] ? trace_preempt_on+0x20/0xc0 [ 13.785304] ? __pfx_kthread+0x10/0x10 [ 13.785321] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.785340] ? calculate_sigpending+0x7b/0xa0 [ 13.785361] ? __pfx_kthread+0x10/0x10 [ 13.785378] ret_from_fork+0x41/0x80 [ 13.785397] ? __pfx_kthread+0x10/0x10 [ 13.785415] ret_from_fork_asm+0x1a/0x30 [ 13.785443] </TASK> [ 13.785455] [ 13.796438] Allocated by task 192: [ 13.796954] kasan_save_stack+0x45/0x70 [ 13.797291] kasan_save_track+0x18/0x40 [ 13.798427] kasan_save_alloc_info+0x3b/0x50 [ 13.798636] __kasan_kmalloc+0xb7/0xc0 [ 13.799181] __kmalloc_cache_noprof+0x189/0x420 [ 13.799357] kmalloc_oob_memset_2+0xac/0x330 [ 13.800120] kunit_try_run_case+0x1a5/0x480 [ 13.800487] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.800678] kthread+0x337/0x6f0 [ 13.800981] ret_from_fork+0x41/0x80 [ 13.801520] ret_from_fork_asm+0x1a/0x30 [ 13.801988] [ 13.802182] The buggy address belongs to the object at ffff888102d90d00 [ 13.802182] which belongs to the cache kmalloc-128 of size 128 [ 13.803064] The buggy address is located 119 bytes inside of [ 13.803064] allocated 120-byte region [ffff888102d90d00, ffff888102d90d78) [ 13.804198] [ 13.804323] The buggy address belongs to the physical page: [ 13.805281] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102d90 [ 13.805784] flags: 0x200000000000000(node=0|zone=2) [ 13.806227] page_type: f5(slab) [ 13.806385] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.807326] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.807604] page dumped because: kasan: bad access detected [ 13.808248] [ 13.808538] Memory state around the buggy address: [ 13.809117] ffff888102d90c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.809476] ffff888102d90c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.810340] >ffff888102d90d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.810605] ^ [ 13.811241] ffff888102d90d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.811686] ffff888102d90e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.812500] ==================================================================