Date
July 24, 2025, 4:41 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.194126] ================================================================== [ 32.194658] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 32.194728] Write of size 1 at addr fff00000c6605f00 by task kunit_try_catch/175 [ 32.194793] [ 32.195089] CPU: 0 UID: 0 PID: 175 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250724 #1 PREEMPT [ 32.195671] Tainted: [B]=BAD_PAGE, [N]=TEST [ 32.195739] Hardware name: linux,dummy-virt (DT) [ 32.196129] Call trace: [ 32.196210] show_stack+0x20/0x38 (C) [ 32.196284] dump_stack_lvl+0x8c/0xd0 [ 32.196411] print_report+0x118/0x5e8 [ 32.196508] kasan_report+0xdc/0x128 [ 32.196585] __asan_report_store1_noabort+0x20/0x30 [ 32.196736] kmalloc_big_oob_right+0x2a4/0x2f0 [ 32.197036] kunit_try_run_case+0x170/0x3f0 [ 32.197314] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.197418] kthread+0x328/0x630 [ 32.197565] ret_from_fork+0x10/0x20 [ 32.197660] [ 32.197679] Allocated by task 175: [ 32.197937] kasan_save_stack+0x3c/0x68 [ 32.198215] kasan_save_track+0x20/0x40 [ 32.198595] kasan_save_alloc_info+0x40/0x58 [ 32.198740] __kasan_kmalloc+0xd4/0xd8 [ 32.198894] __kmalloc_cache_noprof+0x16c/0x3c0 [ 32.199084] kmalloc_big_oob_right+0xb8/0x2f0 [ 32.199128] kunit_try_run_case+0x170/0x3f0 [ 32.199187] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.199582] kthread+0x328/0x630 [ 32.199740] ret_from_fork+0x10/0x20 [ 32.199809] [ 32.199903] The buggy address belongs to the object at fff00000c6604000 [ 32.199903] which belongs to the cache kmalloc-8k of size 8192 [ 32.200000] The buggy address is located 0 bytes to the right of [ 32.200000] allocated 7936-byte region [fff00000c6604000, fff00000c6605f00) [ 32.200098] [ 32.200326] The buggy address belongs to the physical page: [ 32.200643] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106600 [ 32.200826] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 32.200905] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 32.201236] page_type: f5(slab) [ 32.201503] raw: 0bfffe0000000040 fff00000c0002280 dead000000000100 dead000000000122 [ 32.201635] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 32.201698] head: 0bfffe0000000040 fff00000c0002280 dead000000000100 dead000000000122 [ 32.201927] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 32.202261] head: 0bfffe0000000003 ffffc1ffc3198001 00000000ffffffff 00000000ffffffff [ 32.202355] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 32.202433] page dumped because: kasan: bad access detected [ 32.202534] [ 32.202589] Memory state around the buggy address: [ 32.202625] fff00000c6605e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.202771] fff00000c6605e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.203017] >fff00000c6605f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.203275] ^ [ 32.203389] fff00000c6605f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.203512] fff00000c6606000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.203552] ==================================================================
[ 26.282258] ================================================================== [ 26.282995] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 26.283385] Write of size 1 at addr ffff8881060b1f00 by task kunit_try_catch/192 [ 26.283730] [ 26.284112] CPU: 0 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250724 #1 PREEMPT(voluntary) [ 26.284170] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 26.284184] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.284223] Call Trace: [ 26.284389] <TASK> [ 26.284479] dump_stack_lvl+0x73/0xb0 [ 26.284516] print_report+0xd1/0x640 [ 26.284539] ? __virt_addr_valid+0x1db/0x2d0 [ 26.284564] ? kmalloc_big_oob_right+0x316/0x370 [ 26.284598] ? kasan_complete_mode_report_info+0x2a/0x200 [ 26.284622] ? kmalloc_big_oob_right+0x316/0x370 [ 26.284644] kasan_report+0x141/0x180 [ 26.284665] ? kmalloc_big_oob_right+0x316/0x370 [ 26.284691] __asan_report_store1_noabort+0x1b/0x30 [ 26.284715] kmalloc_big_oob_right+0x316/0x370 [ 26.284736] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 26.284759] ? __schedule+0x10da/0x2b60 [ 26.284784] ? __pfx_read_tsc+0x10/0x10 [ 26.284806] ? ktime_get_ts64+0x86/0x230 [ 26.284832] kunit_try_run_case+0x1a5/0x480 [ 26.284857] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.284879] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.284903] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.284939] ? __kthread_parkme+0x82/0x180 [ 26.284959] ? preempt_count_sub+0x50/0x80 [ 26.284982] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.285005] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.285027] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.285050] kthread+0x337/0x6f0 [ 26.285070] ? trace_preempt_on+0x20/0xc0 [ 26.285094] ? __pfx_kthread+0x10/0x10 [ 26.285124] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.285155] ? calculate_sigpending+0x7b/0xa0 [ 26.285178] ? __pfx_kthread+0x10/0x10 [ 26.285198] ret_from_fork+0x116/0x1d0 [ 26.285217] ? __pfx_kthread+0x10/0x10 [ 26.285238] ret_from_fork_asm+0x1a/0x30 [ 26.285270] </TASK> [ 26.285280] [ 26.296829] Allocated by task 192: [ 26.297478] kasan_save_stack+0x45/0x70 [ 26.297715] kasan_save_track+0x18/0x40 [ 26.297859] kasan_save_alloc_info+0x3b/0x50 [ 26.298003] __kasan_kmalloc+0xb7/0xc0 [ 26.298130] __kmalloc_cache_noprof+0x189/0x420 [ 26.298285] kmalloc_big_oob_right+0xa9/0x370 [ 26.298432] kunit_try_run_case+0x1a5/0x480 [ 26.298584] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.298753] kthread+0x337/0x6f0 [ 26.298869] ret_from_fork+0x116/0x1d0 [ 26.298995] ret_from_fork_asm+0x1a/0x30 [ 26.299132] [ 26.299198] The buggy address belongs to the object at ffff8881060b0000 [ 26.299198] which belongs to the cache kmalloc-8k of size 8192 [ 26.299560] The buggy address is located 0 bytes to the right of [ 26.299560] allocated 7936-byte region [ffff8881060b0000, ffff8881060b1f00) [ 26.300419] [ 26.300505] The buggy address belongs to the physical page: [ 26.300700] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1060b0 [ 26.301390] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 26.302090] flags: 0x200000000000040(head|node=0|zone=2) [ 26.302570] page_type: f5(slab) [ 26.302931] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 26.303442] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 26.303680] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 26.304256] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 26.305258] head: 0200000000000003 ffffea0004182c01 00000000ffffffff 00000000ffffffff [ 26.306012] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 26.306344] page dumped because: kasan: bad access detected [ 26.306511] [ 26.306584] Memory state around the buggy address: [ 26.306736] ffff8881060b1e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.307404] ffff8881060b1e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.308085] >ffff8881060b1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.308682] ^ [ 26.309055] ffff8881060b1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.309661] ffff8881060b2000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.310213] ==================================================================