Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.509548] ================================================================== [ 21.509743] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x144/0x2d0 [ 21.510636] Write of size 128 at addr fff00000c5d6ea00 by task kunit_try_catch/170 [ 21.510937] [ 21.511409] CPU: 1 UID: 0 PID: 170 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 21.511714] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.511783] Hardware name: linux,dummy-virt (DT) [ 21.511948] Call trace: [ 21.512413] show_stack+0x20/0x38 (C) [ 21.512811] dump_stack_lvl+0x8c/0xd0 [ 21.512961] print_report+0x118/0x608 [ 21.513076] kasan_report+0xdc/0x128 [ 21.513190] kasan_check_range+0x100/0x1a8 [ 21.513524] __asan_memset+0x34/0x78 [ 21.513645] kmalloc_oob_in_memset+0x144/0x2d0 [ 21.513783] kunit_try_run_case+0x170/0x3f0 [ 21.513908] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.514034] kthread+0x328/0x630 [ 21.514143] ret_from_fork+0x10/0x20 [ 21.514265] [ 21.514327] Allocated by task 170: [ 21.514792] kasan_save_stack+0x3c/0x68 [ 21.515493] kasan_save_track+0x20/0x40 [ 21.515849] kasan_save_alloc_info+0x40/0x58 [ 21.515972] __kasan_kmalloc+0xd4/0xd8 [ 21.516067] __kmalloc_cache_noprof+0x15c/0x3c0 [ 21.516164] kmalloc_oob_in_memset+0xb0/0x2d0 [ 21.516493] kunit_try_run_case+0x170/0x3f0 [ 21.516608] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.516980] kthread+0x328/0x630 [ 21.517091] ret_from_fork+0x10/0x20 [ 21.517179] [ 21.517760] The buggy address belongs to the object at fff00000c5d6ea00 [ 21.517760] which belongs to the cache kmalloc-128 of size 128 [ 21.518123] The buggy address is located 0 bytes inside of [ 21.518123] allocated 120-byte region [fff00000c5d6ea00, fff00000c5d6ea78) [ 21.518453] [ 21.518528] The buggy address belongs to the physical page: [ 21.518674] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105d6e [ 21.518785] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.519414] page_type: f5(slab) [ 21.519543] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 21.520039] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.520223] page dumped because: kasan: bad access detected [ 21.520316] [ 21.520363] Memory state around the buggy address: [ 21.520529] fff00000c5d6e900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.520646] fff00000c5d6e980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.520934] >fff00000c5d6ea00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 21.521061] ^ [ 21.521577] fff00000c5d6ea80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.521856] fff00000c5d6eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.521951] ==================================================================
[ 10.931042] ================================================================== [ 10.931415] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x15f/0x320 [ 10.931732] Write of size 128 at addr ffff888102896a00 by task kunit_try_catch/187 [ 10.932196] [ 10.932376] CPU: 1 UID: 0 PID: 187 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.932421] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.932434] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.932455] Call Trace: [ 10.932465] <TASK> [ 10.932480] dump_stack_lvl+0x73/0xb0 [ 10.932823] print_report+0xd1/0x650 [ 10.932855] ? __virt_addr_valid+0x1db/0x2d0 [ 10.932879] ? kmalloc_oob_in_memset+0x15f/0x320 [ 10.932901] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.932925] ? kmalloc_oob_in_memset+0x15f/0x320 [ 10.932947] kasan_report+0x141/0x180 [ 10.932969] ? kmalloc_oob_in_memset+0x15f/0x320 [ 10.932996] kasan_check_range+0x10c/0x1c0 [ 10.933021] __asan_memset+0x27/0x50 [ 10.933041] kmalloc_oob_in_memset+0x15f/0x320 [ 10.933063] ? __pfx_kmalloc_oob_in_memset+0x10/0x10 [ 10.933089] ? __pfx_read_tsc+0x10/0x10 [ 10.933110] ? ktime_get_ts64+0x86/0x230 [ 10.933134] kunit_try_run_case+0x1a5/0x480 [ 10.933155] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.933174] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.933198] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.933222] ? __kthread_parkme+0x82/0x180 [ 10.933242] ? preempt_count_sub+0x50/0x80 [ 10.933265] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.933285] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.933309] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.933333] kthread+0x337/0x6f0 [ 10.933352] ? trace_preempt_on+0x20/0xc0 [ 10.933375] ? __pfx_kthread+0x10/0x10 [ 10.933395] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.933417] ? calculate_sigpending+0x7b/0xa0 [ 10.933440] ? __pfx_kthread+0x10/0x10 [ 10.933461] ret_from_fork+0x116/0x1d0 [ 10.933480] ? __pfx_kthread+0x10/0x10 [ 10.933502] ret_from_fork_asm+0x1a/0x30 [ 10.933532] </TASK> [ 10.933542] [ 10.943915] Allocated by task 187: [ 10.944209] kasan_save_stack+0x45/0x70 [ 10.945132] kasan_save_track+0x18/0x40 [ 10.945319] kasan_save_alloc_info+0x3b/0x50 [ 10.945549] __kasan_kmalloc+0xb7/0xc0 [ 10.946036] __kmalloc_cache_noprof+0x189/0x420 [ 10.946378] kmalloc_oob_in_memset+0xac/0x320 [ 10.946686] kunit_try_run_case+0x1a5/0x480 [ 10.947106] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.947456] kthread+0x337/0x6f0 [ 10.947724] ret_from_fork+0x116/0x1d0 [ 10.948094] ret_from_fork_asm+0x1a/0x30 [ 10.948255] [ 10.948529] The buggy address belongs to the object at ffff888102896a00 [ 10.948529] which belongs to the cache kmalloc-128 of size 128 [ 10.949275] The buggy address is located 0 bytes inside of [ 10.949275] allocated 120-byte region [ffff888102896a00, ffff888102896a78) [ 10.949904] [ 10.950032] The buggy address belongs to the physical page: [ 10.950255] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102896 [ 10.950592] flags: 0x200000000000000(node=0|zone=2) [ 10.950794] page_type: f5(slab) [ 10.951044] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 10.951345] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 10.951749] page dumped because: kasan: bad access detected [ 10.952012] [ 10.952234] Memory state around the buggy address: [ 10.952539] ffff888102896900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 10.953099] ffff888102896980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.953671] >ffff888102896a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 10.954199] ^ [ 10.954595] ffff888102896a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.955090] ffff888102896b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.955497] ==================================================================