Date
July 19, 2025, 11:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.016277] ================================================================== [ 15.016336] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 15.016385] Write of size 1 at addr fff00000c6115f00 by task kunit_try_catch/144 [ 15.016432] [ 15.016463] CPU: 1 UID: 0 PID: 144 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.016678] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.016739] Hardware name: linux,dummy-virt (DT) [ 15.016903] Call trace: [ 15.016933] show_stack+0x20/0x38 (C) [ 15.016981] dump_stack_lvl+0x8c/0xd0 [ 15.017027] print_report+0x118/0x5d0 [ 15.017072] kasan_report+0xdc/0x128 [ 15.017116] __asan_report_store1_noabort+0x20/0x30 [ 15.017223] kmalloc_big_oob_right+0x2a4/0x2f0 [ 15.017284] kunit_try_run_case+0x170/0x3f0 [ 15.017332] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.017382] kthread+0x328/0x630 [ 15.017423] ret_from_fork+0x10/0x20 [ 15.017491] [ 15.017510] Allocated by task 144: [ 15.017537] kasan_save_stack+0x3c/0x68 [ 15.017584] kasan_save_track+0x20/0x40 [ 15.017659] kasan_save_alloc_info+0x40/0x58 [ 15.017819] __kasan_kmalloc+0xd4/0xd8 [ 15.017865] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.017903] kmalloc_big_oob_right+0xb8/0x2f0 [ 15.017939] kunit_try_run_case+0x170/0x3f0 [ 15.017975] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.018016] kthread+0x328/0x630 [ 15.018055] ret_from_fork+0x10/0x20 [ 15.018092] [ 15.018111] The buggy address belongs to the object at fff00000c6114000 [ 15.018111] which belongs to the cache kmalloc-8k of size 8192 [ 15.018193] The buggy address is located 0 bytes to the right of [ 15.018193] allocated 7936-byte region [fff00000c6114000, fff00000c6115f00) [ 15.018450] [ 15.018470] The buggy address belongs to the physical page: [ 15.018514] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106110 [ 15.018605] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.018744] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.018797] page_type: f5(slab) [ 15.018834] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 15.018882] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 15.018931] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 15.018978] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 15.019036] head: 0bfffe0000000003 ffffc1ffc3184401 00000000ffffffff 00000000ffffffff [ 15.019085] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 15.019123] page dumped because: kasan: bad access detected [ 15.019214] [ 15.019236] Memory state around the buggy address: [ 15.019279] fff00000c6115e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.019321] fff00000c6115e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.019362] >fff00000c6115f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.019398] ^ [ 15.019425] fff00000c6115f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.019579] fff00000c6116000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.019870] ==================================================================
[ 11.467782] ================================================================== [ 11.468816] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 11.469534] Write of size 1 at addr ffff888102b39f00 by task kunit_try_catch/161 [ 11.469795] [ 11.469882] CPU: 1 UID: 0 PID: 161 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 11.469924] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.469935] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.469953] Call Trace: [ 11.469964] <TASK> [ 11.469978] dump_stack_lvl+0x73/0xb0 [ 11.470023] print_report+0xd1/0x610 [ 11.470044] ? __virt_addr_valid+0x1db/0x2d0 [ 11.470065] ? kmalloc_big_oob_right+0x316/0x370 [ 11.470086] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.470106] ? kmalloc_big_oob_right+0x316/0x370 [ 11.470127] kasan_report+0x141/0x180 [ 11.470148] ? kmalloc_big_oob_right+0x316/0x370 [ 11.470174] __asan_report_store1_noabort+0x1b/0x30 [ 11.470197] kmalloc_big_oob_right+0x316/0x370 [ 11.470218] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 11.470239] ? __schedule+0x10cc/0x2b60 [ 11.470261] ? __pfx_read_tsc+0x10/0x10 [ 11.470281] ? ktime_get_ts64+0x86/0x230 [ 11.470303] kunit_try_run_case+0x1a5/0x480 [ 11.470326] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.470415] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.470442] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.470464] ? __kthread_parkme+0x82/0x180 [ 11.470482] ? preempt_count_sub+0x50/0x80 [ 11.470504] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.470527] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.470549] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.470571] kthread+0x337/0x6f0 [ 11.470589] ? trace_preempt_on+0x20/0xc0 [ 11.470611] ? __pfx_kthread+0x10/0x10 [ 11.470630] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.470650] ? calculate_sigpending+0x7b/0xa0 [ 11.470674] ? __pfx_kthread+0x10/0x10 [ 11.470694] ret_from_fork+0x116/0x1d0 [ 11.470713] ? __pfx_kthread+0x10/0x10 [ 11.470734] ret_from_fork_asm+0x1a/0x30 [ 11.470764] </TASK> [ 11.470773] [ 11.482309] Allocated by task 161: [ 11.482863] kasan_save_stack+0x45/0x70 [ 11.483240] kasan_save_track+0x18/0x40 [ 11.483657] kasan_save_alloc_info+0x3b/0x50 [ 11.484046] __kasan_kmalloc+0xb7/0xc0 [ 11.484179] __kmalloc_cache_noprof+0x189/0x420 [ 11.484335] kmalloc_big_oob_right+0xa9/0x370 [ 11.484781] kunit_try_run_case+0x1a5/0x480 [ 11.485178] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.485709] kthread+0x337/0x6f0 [ 11.485971] ret_from_fork+0x116/0x1d0 [ 11.486313] ret_from_fork_asm+0x1a/0x30 [ 11.486528] [ 11.486601] The buggy address belongs to the object at ffff888102b38000 [ 11.486601] which belongs to the cache kmalloc-8k of size 8192 [ 11.486957] The buggy address is located 0 bytes to the right of [ 11.486957] allocated 7936-byte region [ffff888102b38000, ffff888102b39f00) [ 11.487891] [ 11.488068] The buggy address belongs to the physical page: [ 11.488572] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b38 [ 11.488820] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.489061] flags: 0x200000000000040(head|node=0|zone=2) [ 11.489240] page_type: f5(slab) [ 11.489359] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 11.490082] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 11.490861] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 11.491702] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 11.492467] head: 0200000000000003 ffffea00040ace01 00000000ffffffff 00000000ffffffff [ 11.493139] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 11.493975] page dumped because: kasan: bad access detected [ 11.494559] [ 11.494738] Memory state around the buggy address: [ 11.495110] ffff888102b39e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.495796] ffff888102b39e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.496232] >ffff888102b39f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.496454] ^ [ 11.496571] ffff888102b39f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.496786] ffff888102b3a000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.497014] ==================================================================