Date
May 12, 2025, 11:48 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.764607] ================================================================== [ 16.764734] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 16.764841] Write of size 8 at addr fff00000c78d9171 by task kunit_try_catch/176 [ 16.764946] [ 16.765013] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT [ 16.765695] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.765766] Hardware name: linux,dummy-virt (DT) [ 16.765930] Call trace: [ 16.765988] show_stack+0x20/0x38 (C) [ 16.766127] dump_stack_lvl+0x8c/0xd0 [ 16.766302] print_report+0x118/0x608 [ 16.766621] kasan_report+0xdc/0x128 [ 16.766794] kasan_check_range+0x100/0x1a8 [ 16.766915] __asan_memset+0x34/0x78 [ 16.767356] kmalloc_oob_memset_8+0x150/0x2f8 [ 16.767643] kunit_try_run_case+0x170/0x3f0 [ 16.767826] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.768088] kthread+0x328/0x630 [ 16.768193] ret_from_fork+0x10/0x20 [ 16.768303] [ 16.768343] Allocated by task 176: [ 16.768403] kasan_save_stack+0x3c/0x68 [ 16.768486] kasan_save_track+0x20/0x40 [ 16.768669] kasan_save_alloc_info+0x40/0x58 [ 16.768857] __kasan_kmalloc+0xd4/0xd8 [ 16.769280] __kmalloc_cache_noprof+0x15c/0x3c0 [ 16.769578] kmalloc_oob_memset_8+0xb0/0x2f8 [ 16.769698] kunit_try_run_case+0x170/0x3f0 [ 16.770059] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.770232] kthread+0x328/0x630 [ 16.770350] ret_from_fork+0x10/0x20 [ 16.770437] [ 16.770666] The buggy address belongs to the object at fff00000c78d9100 [ 16.770666] which belongs to the cache kmalloc-128 of size 128 [ 16.770796] The buggy address is located 113 bytes inside of [ 16.770796] allocated 120-byte region [fff00000c78d9100, fff00000c78d9178) [ 16.770912] [ 16.770955] The buggy address belongs to the physical page: [ 16.771125] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078d9 [ 16.771346] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.771549] page_type: f5(slab) [ 16.771840] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.771941] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.772124] page dumped because: kasan: bad access detected [ 16.772337] [ 16.772490] Memory state around the buggy address: [ 16.772564] fff00000c78d9000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.772741] fff00000c78d9080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.772857] >fff00000c78d9100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.772937] ^ [ 16.773022] fff00000c78d9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.773125] fff00000c78d9200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.773208] ==================================================================
[ 16.764186] ================================================================== [ 16.764925] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 16.765503] Write of size 8 at addr ffff888102b42771 by task kunit_try_catch/193 [ 16.765951] [ 16.766207] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT(voluntary) [ 16.766338] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.766368] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.766406] Call Trace: [ 16.766431] <TASK> [ 16.766461] dump_stack_lvl+0x73/0xb0 [ 16.766518] print_report+0xd1/0x650 [ 16.766559] ? __virt_addr_valid+0x1db/0x2d0 [ 16.766603] ? kmalloc_oob_memset_8+0x166/0x330 [ 16.766646] ? kasan_complete_mode_report_info+0x2a/0x200 [ 16.766732] ? kmalloc_oob_memset_8+0x166/0x330 [ 16.766794] kasan_report+0x141/0x180 [ 16.766841] ? kmalloc_oob_memset_8+0x166/0x330 [ 16.766896] kasan_check_range+0x10c/0x1c0 [ 16.766941] __asan_memset+0x27/0x50 [ 16.766984] kmalloc_oob_memset_8+0x166/0x330 [ 16.767076] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 16.767125] ? __schedule+0x10cc/0x2b60 [ 16.767164] ? __pfx_read_tsc+0x10/0x10 [ 16.767198] ? ktime_get_ts64+0x86/0x230 [ 16.767240] kunit_try_run_case+0x1a5/0x480 [ 16.767299] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.767343] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 16.767388] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 16.767437] ? __kthread_parkme+0x82/0x180 [ 16.767492] ? preempt_count_sub+0x50/0x80 [ 16.767544] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.767587] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.767632] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 16.767714] kthread+0x337/0x6f0 [ 16.767768] ? trace_preempt_on+0x20/0xc0 [ 16.767822] ? __pfx_kthread+0x10/0x10 [ 16.767861] ? _raw_spin_unlock_irq+0x47/0x80 [ 16.767898] ? calculate_sigpending+0x7b/0xa0 [ 16.767934] ? __pfx_kthread+0x10/0x10 [ 16.767957] ret_from_fork+0x116/0x1d0 [ 16.767978] ? __pfx_kthread+0x10/0x10 [ 16.767999] ret_from_fork_asm+0x1a/0x30 [ 16.768046] </TASK> [ 16.768071] [ 16.781821] Allocated by task 193: [ 16.782293] kasan_save_stack+0x45/0x70 [ 16.782720] kasan_save_track+0x18/0x40 [ 16.782964] kasan_save_alloc_info+0x3b/0x50 [ 16.783434] __kasan_kmalloc+0xb7/0xc0 [ 16.783803] __kmalloc_cache_noprof+0x189/0x420 [ 16.784224] kmalloc_oob_memset_8+0xac/0x330 [ 16.784537] kunit_try_run_case+0x1a5/0x480 [ 16.784818] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.785246] kthread+0x337/0x6f0 [ 16.785565] ret_from_fork+0x116/0x1d0 [ 16.785884] ret_from_fork_asm+0x1a/0x30 [ 16.786227] [ 16.786590] The buggy address belongs to the object at ffff888102b42700 [ 16.786590] which belongs to the cache kmalloc-128 of size 128 [ 16.787887] The buggy address is located 113 bytes inside of [ 16.787887] allocated 120-byte region [ffff888102b42700, ffff888102b42778) [ 16.788984] [ 16.789313] The buggy address belongs to the physical page: [ 16.789707] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b42 [ 16.790152] flags: 0x200000000000000(node=0|zone=2) [ 16.790548] page_type: f5(slab) [ 16.790916] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 16.791703] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.792543] page dumped because: kasan: bad access detected [ 16.793164] [ 16.793367] Memory state around the buggy address: [ 16.793775] ffff888102b42600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.794483] ffff888102b42680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.795233] >ffff888102b42700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.795602] ^ [ 16.796214] ffff888102b42780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.796713] ffff888102b42800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.797130] ==================================================================