Date
July 19, 2025, 11:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.207028] ================================================================== [ 15.207084] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 15.207571] Write of size 2 at addr fff00000c6417877 by task kunit_try_catch/172 [ 15.207679] [ 15.207718] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.207836] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.207961] Hardware name: linux,dummy-virt (DT) [ 15.207992] Call trace: [ 15.208014] show_stack+0x20/0x38 (C) [ 15.208063] dump_stack_lvl+0x8c/0xd0 [ 15.208109] print_report+0x118/0x5d0 [ 15.208153] kasan_report+0xdc/0x128 [ 15.208198] kasan_check_range+0x100/0x1a8 [ 15.208244] __asan_memset+0x34/0x78 [ 15.208285] kmalloc_oob_memset_2+0x150/0x2f8 [ 15.208330] kunit_try_run_case+0x170/0x3f0 [ 15.208501] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.208576] kthread+0x328/0x630 [ 15.208618] ret_from_fork+0x10/0x20 [ 15.208663] [ 15.208681] Allocated by task 172: [ 15.208752] kasan_save_stack+0x3c/0x68 [ 15.208828] kasan_save_track+0x20/0x40 [ 15.208879] kasan_save_alloc_info+0x40/0x58 [ 15.208939] __kasan_kmalloc+0xd4/0xd8 [ 15.209068] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.209169] kmalloc_oob_memset_2+0xb0/0x2f8 [ 15.209245] kunit_try_run_case+0x170/0x3f0 [ 15.209281] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.209332] kthread+0x328/0x630 [ 15.209364] ret_from_fork+0x10/0x20 [ 15.209399] [ 15.209417] The buggy address belongs to the object at fff00000c6417800 [ 15.209417] which belongs to the cache kmalloc-128 of size 128 [ 15.209727] The buggy address is located 119 bytes inside of [ 15.209727] allocated 120-byte region [fff00000c6417800, fff00000c6417878) [ 15.209828] [ 15.209847] The buggy address belongs to the physical page: [ 15.209876] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106417 [ 15.209927] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.209973] page_type: f5(slab) [ 15.210008] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.210057] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.210096] page dumped because: kasan: bad access detected [ 15.210136] [ 15.210154] Memory state around the buggy address: [ 15.210184] fff00000c6417700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.210373] fff00000c6417780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.210438] >fff00000c6417800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.210475] ^ [ 15.210600] fff00000c6417880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.210654] fff00000c6417900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.210699] ==================================================================
[ 12.102669] ================================================================== [ 12.103130] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 12.103720] Write of size 2 at addr ffff8881027d6977 by task kunit_try_catch/189 [ 12.104238] [ 12.104430] CPU: 1 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.104580] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.104592] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.104613] Call Trace: [ 12.104624] <TASK> [ 12.104638] dump_stack_lvl+0x73/0xb0 [ 12.104668] print_report+0xd1/0x610 [ 12.104689] ? __virt_addr_valid+0x1db/0x2d0 [ 12.104710] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.104731] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.104751] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.104772] kasan_report+0x141/0x180 [ 12.104792] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.104817] kasan_check_range+0x10c/0x1c0 [ 12.104839] __asan_memset+0x27/0x50 [ 12.104858] kmalloc_oob_memset_2+0x166/0x330 [ 12.104880] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.104901] ? __schedule+0x10cc/0x2b60 [ 12.104922] ? __pfx_read_tsc+0x10/0x10 [ 12.104943] ? ktime_get_ts64+0x86/0x230 [ 12.104966] kunit_try_run_case+0x1a5/0x480 [ 12.105016] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.105038] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.105060] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.105081] ? __kthread_parkme+0x82/0x180 [ 12.105102] ? preempt_count_sub+0x50/0x80 [ 12.105124] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.105147] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.105169] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.105191] kthread+0x337/0x6f0 [ 12.105209] ? trace_preempt_on+0x20/0xc0 [ 12.105231] ? __pfx_kthread+0x10/0x10 [ 12.105250] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.105270] ? calculate_sigpending+0x7b/0xa0 [ 12.105292] ? __pfx_kthread+0x10/0x10 [ 12.105313] ret_from_fork+0x116/0x1d0 [ 12.105330] ? __pfx_kthread+0x10/0x10 [ 12.105349] ret_from_fork_asm+0x1a/0x30 [ 12.105379] </TASK> [ 12.105388] [ 12.115424] Allocated by task 189: [ 12.115810] kasan_save_stack+0x45/0x70 [ 12.115995] kasan_save_track+0x18/0x40 [ 12.116186] kasan_save_alloc_info+0x3b/0x50 [ 12.116666] __kasan_kmalloc+0xb7/0xc0 [ 12.116854] __kmalloc_cache_noprof+0x189/0x420 [ 12.117045] kmalloc_oob_memset_2+0xac/0x330 [ 12.117258] kunit_try_run_case+0x1a5/0x480 [ 12.117470] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.117989] kthread+0x337/0x6f0 [ 12.118165] ret_from_fork+0x116/0x1d0 [ 12.118344] ret_from_fork_asm+0x1a/0x30 [ 12.118679] [ 12.118780] The buggy address belongs to the object at ffff8881027d6900 [ 12.118780] which belongs to the cache kmalloc-128 of size 128 [ 12.119273] The buggy address is located 119 bytes inside of [ 12.119273] allocated 120-byte region [ffff8881027d6900, ffff8881027d6978) [ 12.120136] [ 12.120245] The buggy address belongs to the physical page: [ 12.120514] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027d6 [ 12.120989] flags: 0x200000000000000(node=0|zone=2) [ 12.121241] page_type: f5(slab) [ 12.121372] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.122158] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.122584] page dumped because: kasan: bad access detected [ 12.122771] [ 12.122865] Memory state around the buggy address: [ 12.123108] ffff8881027d6800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.123387] ffff8881027d6880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.124160] >ffff8881027d6900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.124533] ^ [ 12.125076] ffff8881027d6980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.125555] ffff8881027d6a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.126103] ==================================================================