Date
July 11, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.727778] ================================================================== [ 16.727861] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 16.727914] Write of size 8 at addr fff00000c6f3f771 by task kunit_try_catch/177 [ 16.727961] [ 16.728703] CPU: 0 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.728795] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.728820] Hardware name: linux,dummy-virt (DT) [ 16.728861] Call trace: [ 16.728883] show_stack+0x20/0x38 (C) [ 16.728934] dump_stack_lvl+0x8c/0xd0 [ 16.729357] print_report+0x118/0x608 [ 16.729522] kasan_report+0xdc/0x128 [ 16.729567] kasan_check_range+0x100/0x1a8 [ 16.729827] __asan_memset+0x34/0x78 [ 16.729998] kmalloc_oob_memset_8+0x150/0x2f8 [ 16.730133] kunit_try_run_case+0x170/0x3f0 [ 16.730182] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.730234] kthread+0x328/0x630 [ 16.730276] ret_from_fork+0x10/0x20 [ 16.730324] [ 16.730342] Allocated by task 177: [ 16.730369] kasan_save_stack+0x3c/0x68 [ 16.730409] kasan_save_track+0x20/0x40 [ 16.730444] kasan_save_alloc_info+0x40/0x58 [ 16.730484] __kasan_kmalloc+0xd4/0xd8 [ 16.730518] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.730556] kmalloc_oob_memset_8+0xb0/0x2f8 [ 16.730728] kunit_try_run_case+0x170/0x3f0 [ 16.730880] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.731071] kthread+0x328/0x630 [ 16.731105] ret_from_fork+0x10/0x20 [ 16.731139] [ 16.731159] The buggy address belongs to the object at fff00000c6f3f700 [ 16.731159] which belongs to the cache kmalloc-128 of size 128 [ 16.731342] The buggy address is located 113 bytes inside of [ 16.731342] allocated 120-byte region [fff00000c6f3f700, fff00000c6f3f778) [ 16.731554] [ 16.731577] The buggy address belongs to the physical page: [ 16.731640] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106f3f [ 16.731930] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.732054] page_type: f5(slab) [ 16.732166] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.732300] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.732390] page dumped because: kasan: bad access detected [ 16.732482] [ 16.732499] Memory state around the buggy address: [ 16.732535] fff00000c6f3f600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.732633] fff00000c6f3f680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.732776] >fff00000c6f3f700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.732813] ^ [ 16.732860] fff00000c6f3f780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.732901] fff00000c6f3f800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.733526] ==================================================================
[ 12.506765] ================================================================== [ 12.507398] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 12.507718] Write of size 8 at addr ffff8881029f2d71 by task kunit_try_catch/193 [ 12.508051] [ 12.508199] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.508241] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.508252] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.508271] Call Trace: [ 12.508282] <TASK> [ 12.508297] dump_stack_lvl+0x73/0xb0 [ 12.508326] print_report+0xd1/0x650 [ 12.508346] ? __virt_addr_valid+0x1db/0x2d0 [ 12.508369] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.508390] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.508413] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.508436] kasan_report+0x141/0x180 [ 12.508458] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.508485] kasan_check_range+0x10c/0x1c0 [ 12.508509] __asan_memset+0x27/0x50 [ 12.508530] kmalloc_oob_memset_8+0x166/0x330 [ 12.508553] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 12.508578] ? __schedule+0x10cc/0x2b60 [ 12.508600] ? __pfx_read_tsc+0x10/0x10 [ 12.508621] ? ktime_get_ts64+0x86/0x230 [ 12.508645] kunit_try_run_case+0x1a5/0x480 [ 12.508668] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.508691] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.508714] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.508737] ? __kthread_parkme+0x82/0x180 [ 12.508757] ? preempt_count_sub+0x50/0x80 [ 12.508781] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.509015] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.509090] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.509116] kthread+0x337/0x6f0 [ 12.509135] ? trace_preempt_on+0x20/0xc0 [ 12.509158] ? __pfx_kthread+0x10/0x10 [ 12.509178] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.509199] ? calculate_sigpending+0x7b/0xa0 [ 12.509224] ? __pfx_kthread+0x10/0x10 [ 12.509245] ret_from_fork+0x116/0x1d0 [ 12.509263] ? __pfx_kthread+0x10/0x10 [ 12.509283] ret_from_fork_asm+0x1a/0x30 [ 12.509314] </TASK> [ 12.509324] [ 12.519521] Allocated by task 193: [ 12.520139] kasan_save_stack+0x45/0x70 [ 12.520698] kasan_save_track+0x18/0x40 [ 12.521349] kasan_save_alloc_info+0x3b/0x50 [ 12.521949] __kasan_kmalloc+0xb7/0xc0 [ 12.522563] __kmalloc_cache_noprof+0x189/0x420 [ 12.523436] kmalloc_oob_memset_8+0xac/0x330 [ 12.524035] kunit_try_run_case+0x1a5/0x480 [ 12.524453] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.524642] kthread+0x337/0x6f0 [ 12.524772] ret_from_fork+0x116/0x1d0 [ 12.524905] ret_from_fork_asm+0x1a/0x30 [ 12.525118] [ 12.525214] The buggy address belongs to the object at ffff8881029f2d00 [ 12.525214] which belongs to the cache kmalloc-128 of size 128 [ 12.525752] The buggy address is located 113 bytes inside of [ 12.525752] allocated 120-byte region [ffff8881029f2d00, ffff8881029f2d78) [ 12.526372] [ 12.526448] The buggy address belongs to the physical page: [ 12.526722] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f2 [ 12.527191] flags: 0x200000000000000(node=0|zone=2) [ 12.527360] page_type: f5(slab) [ 12.527554] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.527974] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.528448] page dumped because: kasan: bad access detected [ 12.528731] [ 12.528847] Memory state around the buggy address: [ 12.529152] ffff8881029f2c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.529486] ffff8881029f2c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.529822] >ffff8881029f2d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.530208] ^ [ 12.530544] ffff8881029f2d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.530868] ffff8881029f2e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.531264] ==================================================================