Date
July 16, 2025, 3:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.717619] ================================================================== [ 16.717700] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 16.717998] Write of size 16 at addr fff00000c6554e69 by task kunit_try_catch/178 [ 16.718048] [ 16.718083] CPU: 1 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.718165] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.718190] Hardware name: linux,dummy-virt (DT) [ 16.718219] Call trace: [ 16.718240] show_stack+0x20/0x38 (C) [ 16.718286] dump_stack_lvl+0x8c/0xd0 [ 16.718332] print_report+0x118/0x5d0 [ 16.718377] kasan_report+0xdc/0x128 [ 16.718446] kasan_check_range+0x100/0x1a8 [ 16.718587] __asan_memset+0x34/0x78 [ 16.718826] kmalloc_oob_memset_16+0x150/0x2f8 [ 16.718920] kunit_try_run_case+0x170/0x3f0 [ 16.718969] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.719020] kthread+0x328/0x630 [ 16.719197] ret_from_fork+0x10/0x20 [ 16.719249] [ 16.719313] Allocated by task 178: [ 16.719379] kasan_save_stack+0x3c/0x68 [ 16.719421] kasan_save_track+0x20/0x40 [ 16.719480] kasan_save_alloc_info+0x40/0x58 [ 16.719520] __kasan_kmalloc+0xd4/0xd8 [ 16.719555] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.719747] kmalloc_oob_memset_16+0xb0/0x2f8 [ 16.719835] kunit_try_run_case+0x170/0x3f0 [ 16.719905] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.719954] kthread+0x328/0x630 [ 16.719986] ret_from_fork+0x10/0x20 [ 16.720035] [ 16.720064] The buggy address belongs to the object at fff00000c6554e00 [ 16.720064] which belongs to the cache kmalloc-128 of size 128 [ 16.720123] The buggy address is located 105 bytes inside of [ 16.720123] allocated 120-byte region [fff00000c6554e00, fff00000c6554e78) [ 16.720200] [ 16.720221] The buggy address belongs to the physical page: [ 16.720259] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106554 [ 16.720335] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.720389] page_type: f5(slab) [ 16.720435] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.720494] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.720533] page dumped because: kasan: bad access detected [ 16.720563] [ 16.720602] Memory state around the buggy address: [ 16.720632] fff00000c6554d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.720683] fff00000c6554d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.720736] >fff00000c6554e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.720773] ^ [ 16.720811] fff00000c6554e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.720852] fff00000c6554f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.721078] ==================================================================
[ 12.711320] ================================================================== [ 12.711889] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 12.712329] Write of size 16 at addr ffff8881029ccc69 by task kunit_try_catch/195 [ 12.712638] [ 12.712843] CPU: 1 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.712918] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.712930] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.712950] Call Trace: [ 12.712963] <TASK> [ 12.712978] dump_stack_lvl+0x73/0xb0 [ 12.713010] print_report+0xd1/0x610 [ 12.713033] ? __virt_addr_valid+0x1db/0x2d0 [ 12.713127] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.713164] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.713189] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.713241] kasan_report+0x141/0x180 [ 12.713265] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.713293] kasan_check_range+0x10c/0x1c0 [ 12.713329] __asan_memset+0x27/0x50 [ 12.713350] kmalloc_oob_memset_16+0x166/0x330 [ 12.713402] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 12.713427] ? __schedule+0x10cc/0x2b60 [ 12.713450] ? __pfx_read_tsc+0x10/0x10 [ 12.713483] ? ktime_get_ts64+0x86/0x230 [ 12.713524] kunit_try_run_case+0x1a5/0x480 [ 12.713551] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.713575] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.713602] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.713627] ? __kthread_parkme+0x82/0x180 [ 12.713648] ? preempt_count_sub+0x50/0x80 [ 12.713672] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.713697] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.713723] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.713749] kthread+0x337/0x6f0 [ 12.713778] ? trace_preempt_on+0x20/0xc0 [ 12.713801] ? __pfx_kthread+0x10/0x10 [ 12.713824] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.713847] ? calculate_sigpending+0x7b/0xa0 [ 12.713871] ? __pfx_kthread+0x10/0x10 [ 12.713893] ret_from_fork+0x116/0x1d0 [ 12.713912] ? __pfx_kthread+0x10/0x10 [ 12.713933] ret_from_fork_asm+0x1a/0x30 [ 12.713965] </TASK> [ 12.714024] [ 12.725140] Allocated by task 195: [ 12.725440] kasan_save_stack+0x45/0x70 [ 12.725750] kasan_save_track+0x18/0x40 [ 12.726243] kasan_save_alloc_info+0x3b/0x50 [ 12.726505] __kasan_kmalloc+0xb7/0xc0 [ 12.726820] __kmalloc_cache_noprof+0x189/0x420 [ 12.727279] kmalloc_oob_memset_16+0xac/0x330 [ 12.727627] kunit_try_run_case+0x1a5/0x480 [ 12.727841] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.728244] kthread+0x337/0x6f0 [ 12.728531] ret_from_fork+0x116/0x1d0 [ 12.728819] ret_from_fork_asm+0x1a/0x30 [ 12.729237] [ 12.729337] The buggy address belongs to the object at ffff8881029ccc00 [ 12.729337] which belongs to the cache kmalloc-128 of size 128 [ 12.730372] The buggy address is located 105 bytes inside of [ 12.730372] allocated 120-byte region [ffff8881029ccc00, ffff8881029ccc78) [ 12.731278] [ 12.731635] The buggy address belongs to the physical page: [ 12.731990] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029cc [ 12.732510] flags: 0x200000000000000(node=0|zone=2) [ 12.732826] page_type: f5(slab) [ 12.733005] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.733632] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.734083] page dumped because: kasan: bad access detected [ 12.734672] [ 12.734801] Memory state around the buggy address: [ 12.735243] ffff8881029ccb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.735722] ffff8881029ccb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.736271] >ffff8881029ccc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.736821] ^ [ 12.737223] ffff8881029ccc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.737728] ffff8881029ccd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.738189] ==================================================================