Date
July 5, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.022704] ================================================================== [ 18.022796] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 18.022847] Write of size 16 at addr fff00000c59fcb80 by task kunit_try_catch/166 [ 18.022895] [ 18.022927] CPU: 0 UID: 0 PID: 166 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.023010] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.023139] Hardware name: linux,dummy-virt (DT) [ 18.023189] Call trace: [ 18.023331] show_stack+0x20/0x38 (C) [ 18.023387] dump_stack_lvl+0x8c/0xd0 [ 18.023432] print_report+0x118/0x608 [ 18.023477] kasan_report+0xdc/0x128 [ 18.023542] __asan_report_store16_noabort+0x20/0x30 [ 18.023603] kmalloc_oob_16+0x3a0/0x3f8 [ 18.023648] kunit_try_run_case+0x170/0x3f0 [ 18.023711] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.023978] kthread+0x328/0x630 [ 18.024035] ret_from_fork+0x10/0x20 [ 18.024332] [ 18.024354] Allocated by task 166: [ 18.024383] kasan_save_stack+0x3c/0x68 [ 18.024433] kasan_save_track+0x20/0x40 [ 18.024469] kasan_save_alloc_info+0x40/0x58 [ 18.024507] __kasan_kmalloc+0xd4/0xd8 [ 18.024827] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.024919] kmalloc_oob_16+0xb4/0x3f8 [ 18.024956] kunit_try_run_case+0x170/0x3f0 [ 18.025355] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.025472] kthread+0x328/0x630 [ 18.025636] ret_from_fork+0x10/0x20 [ 18.025785] [ 18.025903] The buggy address belongs to the object at fff00000c59fcb80 [ 18.025903] which belongs to the cache kmalloc-16 of size 16 [ 18.026050] The buggy address is located 0 bytes inside of [ 18.026050] allocated 13-byte region [fff00000c59fcb80, fff00000c59fcb8d) [ 18.026362] [ 18.026542] The buggy address belongs to the physical page: [ 18.026702] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059fc [ 18.026812] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.027033] page_type: f5(slab) [ 18.027070] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 18.027444] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 18.027651] page dumped because: kasan: bad access detected [ 18.027837] [ 18.028003] Memory state around the buggy address: [ 18.028052] fff00000c59fca80: 00 02 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 18.028118] fff00000c59fcb00: fa fb fc fc fa fb fc fc 00 04 fc fc fa fb fc fc [ 18.028242] >fff00000c59fcb80: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 18.028564] ^ [ 18.028690] fff00000c59fcc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.028846] fff00000c59fcc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.029077] ==================================================================
[ 13.541652] ================================================================== [ 13.542513] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 13.542905] Write of size 16 at addr ffff888102509ec0 by task kunit_try_catch/184 [ 13.543315] [ 13.543464] CPU: 1 UID: 0 PID: 184 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.543520] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.543534] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.543558] Call Trace: [ 13.543575] <TASK> [ 13.543597] dump_stack_lvl+0x73/0xb0 [ 13.543635] print_report+0xd1/0x650 [ 13.543661] ? __virt_addr_valid+0x1db/0x2d0 [ 13.543690] ? kmalloc_oob_16+0x452/0x4a0 [ 13.543713] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.543738] ? kmalloc_oob_16+0x452/0x4a0 [ 13.543761] kasan_report+0x141/0x180 [ 13.544035] ? kmalloc_oob_16+0x452/0x4a0 [ 13.544103] __asan_report_store16_noabort+0x1b/0x30 [ 13.544197] kmalloc_oob_16+0x452/0x4a0 [ 13.544225] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 13.544250] ? __schedule+0x10cc/0x2b60 [ 13.544278] ? __pfx_read_tsc+0x10/0x10 [ 13.544303] ? ktime_get_ts64+0x86/0x230 [ 13.544332] kunit_try_run_case+0x1a5/0x480 [ 13.544360] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.544385] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.544413] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.544438] ? __kthread_parkme+0x82/0x180 [ 13.544462] ? preempt_count_sub+0x50/0x80 [ 13.544491] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.544517] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.544542] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.544567] kthread+0x337/0x6f0 [ 13.544589] ? trace_preempt_on+0x20/0xc0 [ 13.544616] ? __pfx_kthread+0x10/0x10 [ 13.544638] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.544661] ? calculate_sigpending+0x7b/0xa0 [ 13.544689] ? __pfx_kthread+0x10/0x10 [ 13.544713] ret_from_fork+0x116/0x1d0 [ 13.544733] ? __pfx_kthread+0x10/0x10 [ 13.544756] ret_from_fork_asm+0x1a/0x30 [ 13.544807] </TASK> [ 13.544822] [ 13.553388] Allocated by task 184: [ 13.553619] kasan_save_stack+0x45/0x70 [ 13.553844] kasan_save_track+0x18/0x40 [ 13.554030] kasan_save_alloc_info+0x3b/0x50 [ 13.554479] __kasan_kmalloc+0xb7/0xc0 [ 13.554646] __kmalloc_cache_noprof+0x189/0x420 [ 13.554883] kmalloc_oob_16+0xa8/0x4a0 [ 13.555110] kunit_try_run_case+0x1a5/0x480 [ 13.555437] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.555736] kthread+0x337/0x6f0 [ 13.555922] ret_from_fork+0x116/0x1d0 [ 13.556101] ret_from_fork_asm+0x1a/0x30 [ 13.556335] [ 13.556445] The buggy address belongs to the object at ffff888102509ec0 [ 13.556445] which belongs to the cache kmalloc-16 of size 16 [ 13.557021] The buggy address is located 0 bytes inside of [ 13.557021] allocated 13-byte region [ffff888102509ec0, ffff888102509ecd) [ 13.557560] [ 13.557673] The buggy address belongs to the physical page: [ 13.558025] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102509 [ 13.558710] flags: 0x200000000000000(node=0|zone=2) [ 13.558983] page_type: f5(slab) [ 13.559296] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 13.559641] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 13.559977] page dumped because: kasan: bad access detected [ 13.560277] [ 13.560362] Memory state around the buggy address: [ 13.560596] ffff888102509d80: 00 03 fc fc fa fb fc fc 00 02 fc fc 00 05 fc fc [ 13.560981] ffff888102509e00: 00 02 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 13.561397] >ffff888102509e80: fa fb fc fc fa fb fc fc 00 05 fc fc 00 00 fc fc [ 13.561647] ^ [ 13.561891] ffff888102509f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.562506] ffff888102509f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.562906] ==================================================================