Date
July 10, 2025, 9:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.449947] ================================================================== [ 29.450019] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 29.450110] Write of size 16 at addr fff00000c8686a80 by task kunit_try_catch/197 [ 29.450280] [ 29.450399] CPU: 0 UID: 0 PID: 197 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT [ 29.450675] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.450740] Hardware name: linux,dummy-virt (DT) [ 29.450822] Call trace: [ 29.450843] show_stack+0x20/0x38 (C) [ 29.450892] dump_stack_lvl+0x8c/0xd0 [ 29.451055] print_report+0x118/0x5d0 [ 29.451100] kasan_report+0xdc/0x128 [ 29.451162] __asan_report_store16_noabort+0x20/0x30 [ 29.451211] kmalloc_oob_16+0x3a0/0x3f8 [ 29.451364] kunit_try_run_case+0x170/0x3f0 [ 29.451508] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.451562] kthread+0x328/0x630 [ 29.451648] ret_from_fork+0x10/0x20 [ 29.451704] [ 29.451760] Allocated by task 197: [ 29.451788] kasan_save_stack+0x3c/0x68 [ 29.451855] kasan_save_track+0x20/0x40 [ 29.452034] kasan_save_alloc_info+0x40/0x58 [ 29.452164] __kasan_kmalloc+0xd4/0xd8 [ 29.452201] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.452240] kmalloc_oob_16+0xb4/0x3f8 [ 29.452275] kunit_try_run_case+0x170/0x3f0 [ 29.452322] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.452366] kthread+0x328/0x630 [ 29.452483] ret_from_fork+0x10/0x20 [ 29.452519] [ 29.452538] The buggy address belongs to the object at fff00000c8686a80 [ 29.452538] which belongs to the cache kmalloc-16 of size 16 [ 29.452596] The buggy address is located 0 bytes inside of [ 29.452596] allocated 13-byte region [fff00000c8686a80, fff00000c8686a8d) [ 29.452789] [ 29.452812] The buggy address belongs to the physical page: [ 29.452843] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xfff00000c8686a40 pfn:0x108686 [ 29.452966] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.453015] page_type: f5(slab) [ 29.453054] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 29.453105] raw: fff00000c8686a40 000000008080007f 00000000f5000000 0000000000000000 [ 29.453165] page dumped because: kasan: bad access detected [ 29.453280] [ 29.453329] Memory state around the buggy address: [ 29.453359] fff00000c8686980: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 29.453520] fff00000c8686a00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 29.453581] >fff00000c8686a80: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 29.453619] ^ [ 29.453684] fff00000c8686b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.453946] fff00000c8686b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.453986] ==================================================================
[ 25.014614] ================================================================== [ 25.016453] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 25.017425] Write of size 16 at addr ffff888103cd6700 by task kunit_try_catch/214 [ 25.018439] [ 25.018930] CPU: 1 UID: 0 PID: 214 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT(voluntary) [ 25.019024] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.019037] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.019060] Call Trace: [ 25.019075] <TASK> [ 25.019095] dump_stack_lvl+0x73/0xb0 [ 25.019126] print_report+0xd1/0x610 [ 25.019151] ? __virt_addr_valid+0x1db/0x2d0 [ 25.019176] ? kmalloc_oob_16+0x452/0x4a0 [ 25.019196] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.019221] ? kmalloc_oob_16+0x452/0x4a0 [ 25.019241] kasan_report+0x141/0x180 [ 25.019364] ? kmalloc_oob_16+0x452/0x4a0 [ 25.019389] __asan_report_store16_noabort+0x1b/0x30 [ 25.019413] kmalloc_oob_16+0x452/0x4a0 [ 25.019433] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 25.019455] ? __schedule+0x10cc/0x2b60 [ 25.019478] ? __pfx_read_tsc+0x10/0x10 [ 25.019509] ? ktime_get_ts64+0x86/0x230 [ 25.019533] kunit_try_run_case+0x1a5/0x480 [ 25.019555] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.019575] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.019598] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.019620] ? __kthread_parkme+0x82/0x180 [ 25.019641] ? preempt_count_sub+0x50/0x80 [ 25.019665] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.019686] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.019723] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.019747] kthread+0x337/0x6f0 [ 25.019766] ? trace_preempt_on+0x20/0xc0 [ 25.019805] ? __pfx_kthread+0x10/0x10 [ 25.019826] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.019852] ? calculate_sigpending+0x7b/0xa0 [ 25.019876] ? __pfx_kthread+0x10/0x10 [ 25.019897] ret_from_fork+0x116/0x1d0 [ 25.019916] ? __pfx_kthread+0x10/0x10 [ 25.019936] ret_from_fork_asm+0x1a/0x30 [ 25.019966] </TASK> [ 25.019978] [ 25.030573] Allocated by task 214: [ 25.030803] kasan_save_stack+0x45/0x70 [ 25.031210] kasan_save_track+0x18/0x40 [ 25.031386] kasan_save_alloc_info+0x3b/0x50 [ 25.031543] __kasan_kmalloc+0xb7/0xc0 [ 25.031978] __kmalloc_cache_noprof+0x189/0x420 [ 25.032286] kmalloc_oob_16+0xa8/0x4a0 [ 25.032473] kunit_try_run_case+0x1a5/0x480 [ 25.033001] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.033283] kthread+0x337/0x6f0 [ 25.033585] ret_from_fork+0x116/0x1d0 [ 25.033872] ret_from_fork_asm+0x1a/0x30 [ 25.034177] [ 25.034295] The buggy address belongs to the object at ffff888103cd6700 [ 25.034295] which belongs to the cache kmalloc-16 of size 16 [ 25.035103] The buggy address is located 0 bytes inside of [ 25.035103] allocated 13-byte region [ffff888103cd6700, ffff888103cd670d) [ 25.035944] [ 25.036044] The buggy address belongs to the physical page: [ 25.036272] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103cd6 [ 25.036908] flags: 0x200000000000000(node=0|zone=2) [ 25.037255] page_type: f5(slab) [ 25.037443] raw: 0200000000000000 ffff888100041640 dead000000000100 dead000000000122 [ 25.037985] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 25.038315] page dumped because: kasan: bad access detected [ 25.038797] [ 25.039050] Memory state around the buggy address: [ 25.039342] ffff888103cd6600: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 25.039789] ffff888103cd6680: fa fb fc fc 00 06 fc fc 00 06 fc fc 00 06 fc fc [ 25.040135] >ffff888103cd6700: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 25.040440] ^ [ 25.040921] ffff888103cd6780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.041206] ffff888103cd6800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.041503] ==================================================================