Date
July 9, 2025, 2:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.024035] ================================================================== [ 17.024112] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 17.024167] Write of size 4 at addr fff00000c7767575 by task kunit_try_catch/174 [ 17.024267] [ 17.024304] CPU: 0 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 17.024700] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.024730] Hardware name: linux,dummy-virt (DT) [ 17.025187] Call trace: [ 17.025225] show_stack+0x20/0x38 (C) [ 17.025290] dump_stack_lvl+0x8c/0xd0 [ 17.025340] print_report+0x118/0x608 [ 17.025387] kasan_report+0xdc/0x128 [ 17.025433] kasan_check_range+0x100/0x1a8 [ 17.025481] __asan_memset+0x34/0x78 [ 17.025524] kmalloc_oob_memset_4+0x150/0x300 [ 17.025571] kunit_try_run_case+0x170/0x3f0 [ 17.025658] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.025711] kthread+0x328/0x630 [ 17.025939] ret_from_fork+0x10/0x20 [ 17.026028] [ 17.026048] Allocated by task 174: [ 17.026079] kasan_save_stack+0x3c/0x68 [ 17.026131] kasan_save_track+0x20/0x40 [ 17.026301] kasan_save_alloc_info+0x40/0x58 [ 17.026415] __kasan_kmalloc+0xd4/0xd8 [ 17.026563] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.026654] kmalloc_oob_memset_4+0xb0/0x300 [ 17.026693] kunit_try_run_case+0x170/0x3f0 [ 17.026731] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.026823] kthread+0x328/0x630 [ 17.027125] ret_from_fork+0x10/0x20 [ 17.027202] [ 17.027251] The buggy address belongs to the object at fff00000c7767500 [ 17.027251] which belongs to the cache kmalloc-128 of size 128 [ 17.027359] The buggy address is located 117 bytes inside of [ 17.027359] allocated 120-byte region [fff00000c7767500, fff00000c7767578) [ 17.027455] [ 17.027753] The buggy address belongs to the physical page: [ 17.027784] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107767 [ 17.027903] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.028324] page_type: f5(slab) [ 17.028412] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.028514] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.028576] page dumped because: kasan: bad access detected [ 17.028607] [ 17.028641] Memory state around the buggy address: [ 17.028790] fff00000c7767400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.029397] fff00000c7767480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.029458] >fff00000c7767500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.029496] ^ [ 17.029676] fff00000c7767580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.029896] fff00000c7767600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.029965] ==================================================================
[ 12.866177] ================================================================== [ 12.866674] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 12.867170] Write of size 4 at addr ffff8881029adb75 by task kunit_try_catch/191 [ 12.867428] [ 12.867543] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.867587] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.867611] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.867631] Call Trace: [ 12.867644] <TASK> [ 12.867660] dump_stack_lvl+0x73/0xb0 [ 12.867691] print_report+0xd1/0x650 [ 12.867713] ? __virt_addr_valid+0x1db/0x2d0 [ 12.867736] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.867757] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.867780] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.867801] kasan_report+0x141/0x180 [ 12.867822] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.867847] kasan_check_range+0x10c/0x1c0 [ 12.867870] __asan_memset+0x27/0x50 [ 12.867888] kmalloc_oob_memset_4+0x166/0x330 [ 12.867910] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.867932] ? __schedule+0x10cc/0x2b60 [ 12.867954] ? __pfx_read_tsc+0x10/0x10 [ 12.867975] ? ktime_get_ts64+0x86/0x230 [ 12.868000] kunit_try_run_case+0x1a5/0x480 [ 12.868026] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.868048] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.868097] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.868120] ? __kthread_parkme+0x82/0x180 [ 12.868141] ? preempt_count_sub+0x50/0x80 [ 12.868165] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.868189] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.868213] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.868237] kthread+0x337/0x6f0 [ 12.868255] ? trace_preempt_on+0x20/0xc0 [ 12.868279] ? __pfx_kthread+0x10/0x10 [ 12.868299] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.868319] ? calculate_sigpending+0x7b/0xa0 [ 12.868343] ? __pfx_kthread+0x10/0x10 [ 12.868363] ret_from_fork+0x116/0x1d0 [ 12.868381] ? __pfx_kthread+0x10/0x10 [ 12.868401] ret_from_fork_asm+0x1a/0x30 [ 12.868432] </TASK> [ 12.868442] [ 12.876728] Allocated by task 191: [ 12.877156] kasan_save_stack+0x45/0x70 [ 12.877402] kasan_save_track+0x18/0x40 [ 12.877624] kasan_save_alloc_info+0x3b/0x50 [ 12.877861] __kasan_kmalloc+0xb7/0xc0 [ 12.878069] __kmalloc_cache_noprof+0x189/0x420 [ 12.878393] kmalloc_oob_memset_4+0xac/0x330 [ 12.878605] kunit_try_run_case+0x1a5/0x480 [ 12.878934] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.879117] kthread+0x337/0x6f0 [ 12.879242] ret_from_fork+0x116/0x1d0 [ 12.879389] ret_from_fork_asm+0x1a/0x30 [ 12.879587] [ 12.879722] The buggy address belongs to the object at ffff8881029adb00 [ 12.879722] which belongs to the cache kmalloc-128 of size 128 [ 12.880577] The buggy address is located 117 bytes inside of [ 12.880577] allocated 120-byte region [ffff8881029adb00, ffff8881029adb78) [ 12.881788] [ 12.882407] The buggy address belongs to the physical page: [ 12.882623] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029ad [ 12.883359] flags: 0x200000000000000(node=0|zone=2) [ 12.883618] page_type: f5(slab) [ 12.883887] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.884352] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.884695] page dumped because: kasan: bad access detected [ 12.885117] [ 12.885218] Memory state around the buggy address: [ 12.885428] ffff8881029ada00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.885770] ffff8881029ada80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.886340] >ffff8881029adb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.886893] ^ [ 12.887169] ffff8881029adb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.887495] ffff8881029adc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.887788] ==================================================================