Date
July 17, 2025, 10:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.566166] ================================================================== [ 29.566538] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 29.566622] Write of size 2 at addr fff00000c59f9f77 by task kunit_try_catch/203 [ 29.566671] [ 29.566706] CPU: 1 UID: 0 PID: 203 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT [ 29.567045] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.567165] Hardware name: linux,dummy-virt (DT) [ 29.567223] Call trace: [ 29.567249] show_stack+0x20/0x38 (C) [ 29.567386] dump_stack_lvl+0x8c/0xd0 [ 29.567456] print_report+0x118/0x5d0 [ 29.567506] kasan_report+0xdc/0x128 [ 29.567771] kasan_check_range+0x100/0x1a8 [ 29.567848] __asan_memset+0x34/0x78 [ 29.567967] kmalloc_oob_memset_2+0x150/0x2f8 [ 29.568039] kunit_try_run_case+0x170/0x3f0 [ 29.568165] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.568219] kthread+0x328/0x630 [ 29.568475] ret_from_fork+0x10/0x20 [ 29.568721] [ 29.568779] Allocated by task 203: [ 29.568902] kasan_save_stack+0x3c/0x68 [ 29.569023] kasan_save_track+0x20/0x40 [ 29.569350] kasan_save_alloc_info+0x40/0x58 [ 29.569452] __kasan_kmalloc+0xd4/0xd8 [ 29.569579] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.569705] kmalloc_oob_memset_2+0xb0/0x2f8 [ 29.569825] kunit_try_run_case+0x170/0x3f0 [ 29.570013] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.570079] kthread+0x328/0x630 [ 29.570118] ret_from_fork+0x10/0x20 [ 29.570260] [ 29.570335] The buggy address belongs to the object at fff00000c59f9f00 [ 29.570335] which belongs to the cache kmalloc-128 of size 128 [ 29.570668] The buggy address is located 119 bytes inside of [ 29.570668] allocated 120-byte region [fff00000c59f9f00, fff00000c59f9f78) [ 29.570835] [ 29.570903] The buggy address belongs to the physical page: [ 29.570995] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059f9 [ 29.571083] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.571304] page_type: f5(slab) [ 29.571484] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000100 dead000000000122 [ 29.571679] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.571790] page dumped because: kasan: bad access detected [ 29.571849] [ 29.571868] Memory state around the buggy address: [ 29.571910] fff00000c59f9e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.571951] fff00000c59f9e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.572013] >fff00000c59f9f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.572049] ^ [ 29.572107] fff00000c59f9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.572148] fff00000c59fa000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.572184] ==================================================================
[ 25.757844] ================================================================== [ 25.758448] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 25.758763] Write of size 2 at addr ffff888105f2fb77 by task kunit_try_catch/221 [ 25.759019] [ 25.759127] CPU: 1 UID: 0 PID: 221 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) [ 25.759173] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.759185] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.759204] Call Trace: [ 25.759216] <TASK> [ 25.759229] dump_stack_lvl+0x73/0xb0 [ 25.759311] print_report+0xd1/0x610 [ 25.759333] ? __virt_addr_valid+0x1db/0x2d0 [ 25.759355] ? kmalloc_oob_memset_2+0x166/0x330 [ 25.759375] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.759400] ? kmalloc_oob_memset_2+0x166/0x330 [ 25.759421] kasan_report+0x141/0x180 [ 25.759442] ? kmalloc_oob_memset_2+0x166/0x330 [ 25.759467] kasan_check_range+0x10c/0x1c0 [ 25.759489] __asan_memset+0x27/0x50 [ 25.759512] kmalloc_oob_memset_2+0x166/0x330 [ 25.759534] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 25.759556] ? __schedule+0x10c6/0x2b60 [ 25.759578] ? __pfx_read_tsc+0x10/0x10 [ 25.759598] ? ktime_get_ts64+0x86/0x230 [ 25.759621] kunit_try_run_case+0x1a5/0x480 [ 25.759643] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.759664] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.759686] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.759708] ? __kthread_parkme+0x82/0x180 [ 25.759731] ? preempt_count_sub+0x50/0x80 [ 25.759753] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.759776] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.759797] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.759819] kthread+0x337/0x6f0 [ 25.759837] ? trace_preempt_on+0x20/0xc0 [ 25.759860] ? __pfx_kthread+0x10/0x10 [ 25.759879] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.759899] ? calculate_sigpending+0x7b/0xa0 [ 25.759921] ? __pfx_kthread+0x10/0x10 [ 25.759941] ret_from_fork+0x116/0x1d0 [ 25.759959] ? __pfx_kthread+0x10/0x10 [ 25.759979] ret_from_fork_asm+0x1a/0x30 [ 25.760009] </TASK> [ 25.760019] [ 25.766407] Allocated by task 221: [ 25.766648] kasan_save_stack+0x45/0x70 [ 25.766791] kasan_save_track+0x18/0x40 [ 25.766919] kasan_save_alloc_info+0x3b/0x50 [ 25.767058] __kasan_kmalloc+0xb7/0xc0 [ 25.767190] __kmalloc_cache_noprof+0x189/0x420 [ 25.769385] kmalloc_oob_memset_2+0xac/0x330 [ 25.769623] kunit_try_run_case+0x1a5/0x480 [ 25.769838] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.770013] kthread+0x337/0x6f0 [ 25.770142] ret_from_fork+0x116/0x1d0 [ 25.770498] ret_from_fork_asm+0x1a/0x30 [ 25.770707] [ 25.770799] The buggy address belongs to the object at ffff888105f2fb00 [ 25.770799] which belongs to the cache kmalloc-128 of size 128 [ 25.771257] The buggy address is located 119 bytes inside of [ 25.771257] allocated 120-byte region [ffff888105f2fb00, ffff888105f2fb78) [ 25.771701] [ 25.771772] The buggy address belongs to the physical page: [ 25.771936] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105f2f [ 25.772274] flags: 0x200000000000000(node=0|zone=2) [ 25.772959] page_type: f5(slab) [ 25.773154] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.773525] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.773733] page dumped because: kasan: bad access detected [ 25.775283] [ 25.775359] Memory state around the buggy address: [ 25.775507] ffff888105f2fa00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.775708] ffff888105f2fa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.775907] >ffff888105f2fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.776287] ^ [ 25.776508] ffff888105f2fb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.776763] ffff888105f2fc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.777066] ==================================================================