Date
July 5, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.023720] ================================================================== [ 19.023896] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 19.024051] Write of size 4 at addr fff00000c56f1a75 by task kunit_try_catch/175 [ 19.024204] [ 19.024264] CPU: 0 UID: 0 PID: 175 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.024436] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.024492] Hardware name: linux,dummy-virt (DT) [ 19.024551] Call trace: [ 19.024639] show_stack+0x20/0x38 (C) [ 19.024793] dump_stack_lvl+0x8c/0xd0 [ 19.025078] print_report+0x118/0x608 [ 19.025188] kasan_report+0xdc/0x128 [ 19.025327] kasan_check_range+0x100/0x1a8 [ 19.025488] __asan_memset+0x34/0x78 [ 19.025618] kmalloc_oob_memset_4+0x150/0x300 [ 19.025708] kunit_try_run_case+0x170/0x3f0 [ 19.025825] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.025983] kthread+0x328/0x630 [ 19.026099] ret_from_fork+0x10/0x20 [ 19.026236] [ 19.026292] Allocated by task 175: [ 19.026386] kasan_save_stack+0x3c/0x68 [ 19.026499] kasan_save_track+0x20/0x40 [ 19.026594] kasan_save_alloc_info+0x40/0x58 [ 19.026722] __kasan_kmalloc+0xd4/0xd8 [ 19.026805] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.026892] kmalloc_oob_memset_4+0xb0/0x300 [ 19.026974] kunit_try_run_case+0x170/0x3f0 [ 19.027056] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.027155] kthread+0x328/0x630 [ 19.027230] ret_from_fork+0x10/0x20 [ 19.027309] [ 19.027735] The buggy address belongs to the object at fff00000c56f1a00 [ 19.027735] which belongs to the cache kmalloc-128 of size 128 [ 19.027872] The buggy address is located 117 bytes inside of [ 19.027872] allocated 120-byte region [fff00000c56f1a00, fff00000c56f1a78) [ 19.028009] [ 19.028058] The buggy address belongs to the physical page: [ 19.028127] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1056f1 [ 19.028310] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.028436] page_type: f5(slab) [ 19.028518] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.028623] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.028724] page dumped because: kasan: bad access detected [ 19.028829] [ 19.028871] Memory state around the buggy address: [ 19.028936] fff00000c56f1900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.029032] fff00000c56f1980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.029120] >fff00000c56f1a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.029227] ^ [ 19.029316] fff00000c56f1a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.029412] fff00000c56f1b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.029486] ==================================================================
[ 13.721281] ================================================================== [ 13.721883] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 13.722365] Write of size 4 at addr ffff8881029df975 by task kunit_try_catch/191 [ 13.723067] [ 13.723218] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.723276] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.723384] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.723411] Call Trace: [ 13.723428] <TASK> [ 13.723450] dump_stack_lvl+0x73/0xb0 [ 13.723489] print_report+0xd1/0x650 [ 13.723544] ? __virt_addr_valid+0x1db/0x2d0 [ 13.723573] ? kmalloc_oob_memset_4+0x166/0x330 [ 13.723601] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.723627] ? kmalloc_oob_memset_4+0x166/0x330 [ 13.723687] kasan_report+0x141/0x180 [ 13.723714] ? kmalloc_oob_memset_4+0x166/0x330 [ 13.723762] kasan_check_range+0x10c/0x1c0 [ 13.723789] __asan_memset+0x27/0x50 [ 13.723891] kmalloc_oob_memset_4+0x166/0x330 [ 13.723921] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 13.723948] ? __schedule+0x10cc/0x2b60 [ 13.723975] ? __pfx_read_tsc+0x10/0x10 [ 13.724000] ? ktime_get_ts64+0x86/0x230 [ 13.724031] kunit_try_run_case+0x1a5/0x480 [ 13.724063] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.724088] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.724116] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.724142] ? __kthread_parkme+0x82/0x180 [ 13.724167] ? preempt_count_sub+0x50/0x80 [ 13.724195] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.724222] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.724248] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.724274] kthread+0x337/0x6f0 [ 13.724297] ? trace_preempt_on+0x20/0xc0 [ 13.724326] ? __pfx_kthread+0x10/0x10 [ 13.724349] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.724373] ? calculate_sigpending+0x7b/0xa0 [ 13.724403] ? __pfx_kthread+0x10/0x10 [ 13.724428] ret_from_fork+0x116/0x1d0 [ 13.724449] ? __pfx_kthread+0x10/0x10 [ 13.724472] ret_from_fork_asm+0x1a/0x30 [ 13.724509] </TASK> [ 13.724523] [ 13.735331] Allocated by task 191: [ 13.735542] kasan_save_stack+0x45/0x70 [ 13.735887] kasan_save_track+0x18/0x40 [ 13.736118] kasan_save_alloc_info+0x3b/0x50 [ 13.736350] __kasan_kmalloc+0xb7/0xc0 [ 13.736553] __kmalloc_cache_noprof+0x189/0x420 [ 13.737150] kmalloc_oob_memset_4+0xac/0x330 [ 13.737408] kunit_try_run_case+0x1a5/0x480 [ 13.737636] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.737901] kthread+0x337/0x6f0 [ 13.738146] ret_from_fork+0x116/0x1d0 [ 13.738693] ret_from_fork_asm+0x1a/0x30 [ 13.739225] [ 13.739353] The buggy address belongs to the object at ffff8881029df900 [ 13.739353] which belongs to the cache kmalloc-128 of size 128 [ 13.740344] The buggy address is located 117 bytes inside of [ 13.740344] allocated 120-byte region [ffff8881029df900, ffff8881029df978) [ 13.740843] [ 13.740966] The buggy address belongs to the physical page: [ 13.741406] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029df [ 13.742224] flags: 0x200000000000000(node=0|zone=2) [ 13.742519] page_type: f5(slab) [ 13.742735] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.743225] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.743688] page dumped because: kasan: bad access detected [ 13.743934] [ 13.744020] Memory state around the buggy address: [ 13.744204] ffff8881029df800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.744852] ffff8881029df880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.745399] >ffff8881029df900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.746995] ^ [ 13.747381] ffff8881029df980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.747693] ffff8881029dfa00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.748373] ==================================================================