Date
July 3, 2025, 11:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.195075] ================================================================== [ 19.195273] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 19.195585] Read of size 1 at addr fff00000c6363000 by task kunit_try_catch/140 [ 19.195685] [ 19.195768] CPU: 0 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.195985] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.196067] Hardware name: linux,dummy-virt (DT) [ 19.196169] Call trace: [ 19.196235] show_stack+0x20/0x38 (C) [ 19.196382] dump_stack_lvl+0x8c/0xd0 [ 19.196523] print_report+0x118/0x608 [ 19.196635] kasan_report+0xdc/0x128 [ 19.196734] __asan_report_load1_noabort+0x20/0x30 [ 19.196827] kmalloc_node_oob_right+0x2f4/0x330 [ 19.196908] kunit_try_run_case+0x170/0x3f0 [ 19.197001] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.197119] kthread+0x328/0x630 [ 19.197220] ret_from_fork+0x10/0x20 [ 19.197315] [ 19.197352] Allocated by task 140: [ 19.197494] kasan_save_stack+0x3c/0x68 [ 19.197578] kasan_save_track+0x20/0x40 [ 19.197645] kasan_save_alloc_info+0x40/0x58 [ 19.197730] __kasan_kmalloc+0xd4/0xd8 [ 19.197801] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 19.197853] kmalloc_node_oob_right+0xbc/0x330 [ 19.197891] kunit_try_run_case+0x170/0x3f0 [ 19.197927] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.197967] kthread+0x328/0x630 [ 19.197998] ret_from_fork+0x10/0x20 [ 19.198070] [ 19.198126] The buggy address belongs to the object at fff00000c6362000 [ 19.198126] which belongs to the cache kmalloc-4k of size 4096 [ 19.198277] The buggy address is located 0 bytes to the right of [ 19.198277] allocated 4096-byte region [fff00000c6362000, fff00000c6363000) [ 19.198455] [ 19.198508] The buggy address belongs to the physical page: [ 19.198679] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106360 [ 19.199113] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 19.199228] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 19.199393] page_type: f5(slab) [ 19.199513] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 19.199679] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 19.199806] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 19.199949] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 19.200076] head: 0bfffe0000000003 ffffc1ffc318d801 00000000ffffffff 00000000ffffffff [ 19.200168] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 19.200247] page dumped because: kasan: bad access detected [ 19.200308] [ 19.200343] Memory state around the buggy address: [ 19.200429] fff00000c6362f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.200552] fff00000c6362f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.200653] >fff00000c6363000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.200744] ^ [ 19.200816] fff00000c6363080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.200967] fff00000c6363100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.201070] ==================================================================
[ 10.905169] ================================================================== [ 10.905680] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 10.905924] Read of size 1 at addr ffff88810281d000 by task kunit_try_catch/157 [ 10.906726] [ 10.906856] CPU: 1 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 10.906901] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.906912] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.906932] Call Trace: [ 10.906944] <TASK> [ 10.906959] dump_stack_lvl+0x73/0xb0 [ 10.906986] print_report+0xd1/0x650 [ 10.907007] ? __virt_addr_valid+0x1db/0x2d0 [ 10.907028] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.907050] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.907070] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.907092] kasan_report+0x141/0x180 [ 10.907113] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.907160] __asan_report_load1_noabort+0x18/0x20 [ 10.907184] kmalloc_node_oob_right+0x369/0x3c0 [ 10.907207] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 10.907229] ? __schedule+0x10cc/0x2b60 [ 10.907250] ? __pfx_read_tsc+0x10/0x10 [ 10.907269] ? ktime_get_ts64+0x86/0x230 [ 10.907291] kunit_try_run_case+0x1a5/0x480 [ 10.907376] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.907400] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.907422] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.907443] ? __kthread_parkme+0x82/0x180 [ 10.907462] ? preempt_count_sub+0x50/0x80 [ 10.907484] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.907506] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.907528] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.907549] kthread+0x337/0x6f0 [ 10.907567] ? trace_preempt_on+0x20/0xc0 [ 10.907588] ? __pfx_kthread+0x10/0x10 [ 10.907607] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.907626] ? calculate_sigpending+0x7b/0xa0 [ 10.907648] ? __pfx_kthread+0x10/0x10 [ 10.907668] ret_from_fork+0x116/0x1d0 [ 10.907686] ? __pfx_kthread+0x10/0x10 [ 10.907705] ret_from_fork_asm+0x1a/0x30 [ 10.907735] </TASK> [ 10.907745] [ 10.920196] Allocated by task 157: [ 10.920527] kasan_save_stack+0x45/0x70 [ 10.920890] kasan_save_track+0x18/0x40 [ 10.921040] kasan_save_alloc_info+0x3b/0x50 [ 10.921323] __kasan_kmalloc+0xb7/0xc0 [ 10.921710] __kmalloc_cache_node_noprof+0x188/0x420 [ 10.922364] kmalloc_node_oob_right+0xab/0x3c0 [ 10.922655] kunit_try_run_case+0x1a5/0x480 [ 10.922803] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.922976] kthread+0x337/0x6f0 [ 10.923096] ret_from_fork+0x116/0x1d0 [ 10.923252] ret_from_fork_asm+0x1a/0x30 [ 10.923523] [ 10.923620] The buggy address belongs to the object at ffff88810281c000 [ 10.923620] which belongs to the cache kmalloc-4k of size 4096 [ 10.924099] The buggy address is located 0 bytes to the right of [ 10.924099] allocated 4096-byte region [ffff88810281c000, ffff88810281d000) [ 10.924615] [ 10.924722] The buggy address belongs to the physical page: [ 10.925034] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102818 [ 10.925659] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.926008] flags: 0x200000000000040(head|node=0|zone=2) [ 10.926329] page_type: f5(slab) [ 10.926525] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.926824] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.927307] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.927628] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.927922] head: 0200000000000003 ffffea00040a0601 00000000ffffffff 00000000ffffffff [ 10.928291] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 10.928622] page dumped because: kasan: bad access detected [ 10.928839] [ 10.928937] Memory state around the buggy address: [ 10.929161] ffff88810281cf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.929396] ffff88810281cf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.929694] >ffff88810281d000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.929951] ^ [ 10.930105] ffff88810281d080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.930585] ffff88810281d100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.931055] ==================================================================