Date
July 1, 2025, 12:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.453603] ================================================================== [ 17.454011] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 17.454087] Write of size 2 at addr fff00000c7800377 by task kunit_try_catch/172 [ 17.454418] [ 17.454640] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 17.454738] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.455081] Hardware name: linux,dummy-virt (DT) [ 17.455184] Call trace: [ 17.455215] show_stack+0x20/0x38 (C) [ 17.455270] dump_stack_lvl+0x8c/0xd0 [ 17.455319] print_report+0x118/0x608 [ 17.455656] kasan_report+0xdc/0x128 [ 17.455726] kasan_check_range+0x100/0x1a8 [ 17.455938] __asan_memset+0x34/0x78 [ 17.456188] kmalloc_oob_memset_2+0x150/0x2f8 [ 17.456477] kunit_try_run_case+0x170/0x3f0 [ 17.456714] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.457001] kthread+0x328/0x630 [ 17.457406] ret_from_fork+0x10/0x20 [ 17.457571] [ 17.457591] Allocated by task 172: [ 17.457628] kasan_save_stack+0x3c/0x68 [ 17.457963] kasan_save_track+0x20/0x40 [ 17.458126] kasan_save_alloc_info+0x40/0x58 [ 17.458347] __kasan_kmalloc+0xd4/0xd8 [ 17.458533] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.458609] kmalloc_oob_memset_2+0xb0/0x2f8 [ 17.459140] kunit_try_run_case+0x170/0x3f0 [ 17.459260] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.459306] kthread+0x328/0x630 [ 17.459458] ret_from_fork+0x10/0x20 [ 17.459502] [ 17.459662] The buggy address belongs to the object at fff00000c7800300 [ 17.459662] which belongs to the cache kmalloc-128 of size 128 [ 17.459886] The buggy address is located 119 bytes inside of [ 17.459886] allocated 120-byte region [fff00000c7800300, fff00000c7800378) [ 17.460602] [ 17.460637] The buggy address belongs to the physical page: [ 17.460939] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107800 [ 17.461133] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.461401] page_type: f5(slab) [ 17.461602] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.461878] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.462004] page dumped because: kasan: bad access detected [ 17.462737] [ 17.462814] Memory state around the buggy address: [ 17.462853] fff00000c7800200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.463122] fff00000c7800280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.464031] >fff00000c7800300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.464297] ^ [ 17.464369] fff00000c7800380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.464498] fff00000c7800400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.464656] ==================================================================
[ 11.542364] ================================================================== [ 11.542956] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 11.543631] Write of size 2 at addr ffff888102cbbf77 by task kunit_try_catch/189 [ 11.544108] [ 11.544342] CPU: 1 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.544500] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.544513] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.544534] Call Trace: [ 11.544545] <TASK> [ 11.544561] dump_stack_lvl+0x73/0xb0 [ 11.544590] print_report+0xd1/0x650 [ 11.544612] ? __virt_addr_valid+0x1db/0x2d0 [ 11.544633] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.544654] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.544675] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.544696] kasan_report+0x141/0x180 [ 11.544717] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.544742] kasan_check_range+0x10c/0x1c0 [ 11.544764] __asan_memset+0x27/0x50 [ 11.544783] kmalloc_oob_memset_2+0x166/0x330 [ 11.544804] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.544827] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.544852] kunit_try_run_case+0x1a5/0x480 [ 11.544874] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.544894] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.544916] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.544937] ? __kthread_parkme+0x82/0x180 [ 11.544956] ? preempt_count_sub+0x50/0x80 [ 11.544977] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.544999] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.545020] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.545052] kthread+0x337/0x6f0 [ 11.545070] ? trace_preempt_on+0x20/0xc0 [ 11.545092] ? __pfx_kthread+0x10/0x10 [ 11.545112] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.545132] ? calculate_sigpending+0x7b/0xa0 [ 11.545154] ? __pfx_kthread+0x10/0x10 [ 11.545174] ret_from_fork+0x116/0x1d0 [ 11.545191] ? __pfx_kthread+0x10/0x10 [ 11.545211] ret_from_fork_asm+0x1a/0x30 [ 11.545239] </TASK> [ 11.545250] [ 11.552623] Allocated by task 189: [ 11.552830] kasan_save_stack+0x45/0x70 [ 11.553086] kasan_save_track+0x18/0x40 [ 11.553312] kasan_save_alloc_info+0x3b/0x50 [ 11.553533] __kasan_kmalloc+0xb7/0xc0 [ 11.553731] __kmalloc_cache_noprof+0x189/0x420 [ 11.553980] kmalloc_oob_memset_2+0xac/0x330 [ 11.554220] kunit_try_run_case+0x1a5/0x480 [ 11.554539] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.554879] kthread+0x337/0x6f0 [ 11.555007] ret_from_fork+0x116/0x1d0 [ 11.555311] ret_from_fork_asm+0x1a/0x30 [ 11.555539] [ 11.555611] The buggy address belongs to the object at ffff888102cbbf00 [ 11.555611] which belongs to the cache kmalloc-128 of size 128 [ 11.556172] The buggy address is located 119 bytes inside of [ 11.556172] allocated 120-byte region [ffff888102cbbf00, ffff888102cbbf78) [ 11.556767] [ 11.556842] The buggy address belongs to the physical page: [ 11.557110] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102cbb [ 11.557518] flags: 0x200000000000000(node=0|zone=2) [ 11.557762] page_type: f5(slab) [ 11.557963] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.558338] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.558691] page dumped because: kasan: bad access detected [ 11.558934] [ 11.559033] Memory state around the buggy address: [ 11.559258] ffff888102cbbe00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.559493] ffff888102cbbe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.559703] >ffff888102cbbf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.560022] ^ [ 11.560408] ffff888102cbbf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.560727] ffff888102cbc000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.561082] ==================================================================