Date
July 16, 2025, 3:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.683935] ================================================================== [ 16.684007] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 16.684060] Write of size 2 at addr fff00000c6554b77 by task kunit_try_catch/172 [ 16.684124] [ 16.684154] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.684236] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.684261] Hardware name: linux,dummy-virt (DT) [ 16.684290] Call trace: [ 16.684312] show_stack+0x20/0x38 (C) [ 16.684358] dump_stack_lvl+0x8c/0xd0 [ 16.684580] print_report+0x118/0x5d0 [ 16.684739] kasan_report+0xdc/0x128 [ 16.684808] kasan_check_range+0x100/0x1a8 [ 16.684958] __asan_memset+0x34/0x78 [ 16.685056] kmalloc_oob_memset_2+0x150/0x2f8 [ 16.685154] kunit_try_run_case+0x170/0x3f0 [ 16.685269] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.685380] kthread+0x328/0x630 [ 16.685448] ret_from_fork+0x10/0x20 [ 16.685634] [ 16.685671] Allocated by task 172: [ 16.685699] kasan_save_stack+0x3c/0x68 [ 16.685985] kasan_save_track+0x20/0x40 [ 16.686096] kasan_save_alloc_info+0x40/0x58 [ 16.686229] __kasan_kmalloc+0xd4/0xd8 [ 16.686322] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.686456] kmalloc_oob_memset_2+0xb0/0x2f8 [ 16.686566] kunit_try_run_case+0x170/0x3f0 [ 16.686681] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.686819] kthread+0x328/0x630 [ 16.686929] ret_from_fork+0x10/0x20 [ 16.686966] [ 16.686996] The buggy address belongs to the object at fff00000c6554b00 [ 16.686996] which belongs to the cache kmalloc-128 of size 128 [ 16.687086] The buggy address is located 119 bytes inside of [ 16.687086] allocated 120-byte region [fff00000c6554b00, fff00000c6554b78) [ 16.687395] [ 16.687493] The buggy address belongs to the physical page: [ 16.687603] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106554 [ 16.687664] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.687788] page_type: f5(slab) [ 16.687865] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.687929] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.687968] page dumped because: kasan: bad access detected [ 16.688131] [ 16.688149] Memory state around the buggy address: [ 16.688179] fff00000c6554a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.688377] fff00000c6554a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.688473] >fff00000c6554b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.688510] ^ [ 16.688586] fff00000c6554b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.691001] fff00000c6554c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.691048] ==================================================================
[ 12.630588] ================================================================== [ 12.631289] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 12.631963] Write of size 2 at addr ffff88810305bd77 by task kunit_try_catch/189 [ 12.632448] [ 12.632578] CPU: 0 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.632638] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.632660] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.632680] Call Trace: [ 12.632692] <TASK> [ 12.632706] dump_stack_lvl+0x73/0xb0 [ 12.632777] print_report+0xd1/0x610 [ 12.632800] ? __virt_addr_valid+0x1db/0x2d0 [ 12.632834] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.632856] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.632880] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.632902] kasan_report+0x141/0x180 [ 12.632924] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.632951] kasan_check_range+0x10c/0x1c0 [ 12.633066] __asan_memset+0x27/0x50 [ 12.633091] kmalloc_oob_memset_2+0x166/0x330 [ 12.633115] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.633257] ? __schedule+0x10cc/0x2b60 [ 12.633282] ? __pfx_read_tsc+0x10/0x10 [ 12.633303] ? ktime_get_ts64+0x86/0x230 [ 12.633328] kunit_try_run_case+0x1a5/0x480 [ 12.633354] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.633377] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.633401] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.633425] ? __kthread_parkme+0x82/0x180 [ 12.633458] ? preempt_count_sub+0x50/0x80 [ 12.633483] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.633508] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.633533] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.633558] kthread+0x337/0x6f0 [ 12.633577] ? trace_preempt_on+0x20/0xc0 [ 12.633601] ? __pfx_kthread+0x10/0x10 [ 12.633622] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.633643] ? calculate_sigpending+0x7b/0xa0 [ 12.633668] ? __pfx_kthread+0x10/0x10 [ 12.633689] ret_from_fork+0x116/0x1d0 [ 12.633709] ? __pfx_kthread+0x10/0x10 [ 12.633733] ret_from_fork_asm+0x1a/0x30 [ 12.633777] </TASK> [ 12.633787] [ 12.644267] Allocated by task 189: [ 12.644494] kasan_save_stack+0x45/0x70 [ 12.644837] kasan_save_track+0x18/0x40 [ 12.645425] kasan_save_alloc_info+0x3b/0x50 [ 12.645654] __kasan_kmalloc+0xb7/0xc0 [ 12.645854] __kmalloc_cache_noprof+0x189/0x420 [ 12.646084] kmalloc_oob_memset_2+0xac/0x330 [ 12.646423] kunit_try_run_case+0x1a5/0x480 [ 12.646663] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.646942] kthread+0x337/0x6f0 [ 12.647284] ret_from_fork+0x116/0x1d0 [ 12.647538] ret_from_fork_asm+0x1a/0x30 [ 12.647742] [ 12.647899] The buggy address belongs to the object at ffff88810305bd00 [ 12.647899] which belongs to the cache kmalloc-128 of size 128 [ 12.648567] The buggy address is located 119 bytes inside of [ 12.648567] allocated 120-byte region [ffff88810305bd00, ffff88810305bd78) [ 12.649100] [ 12.649377] The buggy address belongs to the physical page: [ 12.649710] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10305b [ 12.650170] flags: 0x200000000000000(node=0|zone=2) [ 12.650617] page_type: f5(slab) [ 12.651165] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.651645] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.652195] page dumped because: kasan: bad access detected [ 12.652456] [ 12.652560] Memory state around the buggy address: [ 12.652776] ffff88810305bc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.653288] ffff88810305bc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.653567] >ffff88810305bd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.654344] ^ [ 12.654798] ffff88810305bd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.655269] ffff88810305be00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.655660] ==================================================================