Date
July 3, 2025, 3:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.684214] ================================================================== [ 15.684277] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.684606] Read of size 64 at addr fff00000c7816f84 by task kunit_try_catch/185 [ 15.684768] [ 15.684811] CPU: 1 UID: 0 PID: 185 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT [ 15.684921] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.684959] Hardware name: linux,dummy-virt (DT) [ 15.684991] Call trace: [ 15.685013] show_stack+0x20/0x38 (C) [ 15.685063] dump_stack_lvl+0x8c/0xd0 [ 15.685158] print_report+0x118/0x608 [ 15.685205] kasan_report+0xdc/0x128 [ 15.685269] kasan_check_range+0x100/0x1a8 [ 15.685321] __asan_memmove+0x3c/0x98 [ 15.685366] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.685417] kunit_try_run_case+0x170/0x3f0 [ 15.685474] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.685525] kthread+0x328/0x630 [ 15.685569] ret_from_fork+0x10/0x20 [ 15.685615] [ 15.685640] Allocated by task 185: [ 15.685669] kasan_save_stack+0x3c/0x68 [ 15.685722] kasan_save_track+0x20/0x40 [ 15.685758] kasan_save_alloc_info+0x40/0x58 [ 15.685797] __kasan_kmalloc+0xd4/0xd8 [ 15.685831] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.685871] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 15.685915] kunit_try_run_case+0x170/0x3f0 [ 15.686394] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.686690] kthread+0x328/0x630 [ 15.686733] ret_from_fork+0x10/0x20 [ 15.686770] [ 15.686790] The buggy address belongs to the object at fff00000c7816f80 [ 15.686790] which belongs to the cache kmalloc-64 of size 64 [ 15.686855] The buggy address is located 4 bytes inside of [ 15.686855] allocated 64-byte region [fff00000c7816f80, fff00000c7816fc0) [ 15.686915] [ 15.686935] The buggy address belongs to the physical page: [ 15.687401] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107816 [ 15.687542] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.687753] page_type: f5(slab) [ 15.687841] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 15.688330] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 15.688559] page dumped because: kasan: bad access detected [ 15.688643] [ 15.688747] Memory state around the buggy address: [ 15.688780] fff00000c7816e80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 15.689121] fff00000c7816f00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 15.689249] >fff00000c7816f80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 15.689426] ^ [ 15.689480] fff00000c7817000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.689768] fff00000c7817080: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.690068] ==================================================================
[ 11.405956] ================================================================== [ 11.406512] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.406920] Read of size 64 at addr ffff888102dcca04 by task kunit_try_catch/201 [ 11.407197] [ 11.407339] CPU: 1 UID: 0 PID: 201 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT(voluntary) [ 11.407388] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.407400] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.407423] Call Trace: [ 11.407437] <TASK> [ 11.407455] dump_stack_lvl+0x73/0xb0 [ 11.407484] print_report+0xd1/0x650 [ 11.407506] ? __virt_addr_valid+0x1db/0x2d0 [ 11.407530] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.407550] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.407573] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.407594] kasan_report+0x141/0x180 [ 11.407616] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.407642] kasan_check_range+0x10c/0x1c0 [ 11.407663] __asan_memmove+0x27/0x70 [ 11.407683] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.407704] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.407726] ? __schedule+0x10cc/0x2b60 [ 11.407750] ? __pfx_read_tsc+0x10/0x10 [ 11.407770] ? ktime_get_ts64+0x86/0x230 [ 11.407798] kunit_try_run_case+0x1a5/0x480 [ 11.407824] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.407846] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.407870] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.407894] ? __kthread_parkme+0x82/0x180 [ 11.407916] ? preempt_count_sub+0x50/0x80 [ 11.407943] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.407966] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.407989] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.408012] kthread+0x337/0x6f0 [ 11.408029] ? trace_preempt_on+0x20/0xc0 [ 11.408053] ? __pfx_kthread+0x10/0x10 [ 11.408071] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.408093] ? calculate_sigpending+0x7b/0xa0 [ 11.408115] ? __pfx_kthread+0x10/0x10 [ 11.408134] ret_from_fork+0x41/0x80 [ 11.408158] ? __pfx_kthread+0x10/0x10 [ 11.408192] ret_from_fork_asm+0x1a/0x30 [ 11.408255] </TASK> [ 11.408268] [ 11.415915] Allocated by task 201: [ 11.416096] kasan_save_stack+0x45/0x70 [ 11.416277] kasan_save_track+0x18/0x40 [ 11.416542] kasan_save_alloc_info+0x3b/0x50 [ 11.416708] __kasan_kmalloc+0xb7/0xc0 [ 11.416841] __kmalloc_cache_noprof+0x189/0x420 [ 11.416994] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.417232] kunit_try_run_case+0x1a5/0x480 [ 11.417455] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.417717] kthread+0x337/0x6f0 [ 11.417834] ret_from_fork+0x41/0x80 [ 11.417962] ret_from_fork_asm+0x1a/0x30 [ 11.418299] [ 11.418403] The buggy address belongs to the object at ffff888102dcca00 [ 11.418403] which belongs to the cache kmalloc-64 of size 64 [ 11.419056] The buggy address is located 4 bytes inside of [ 11.419056] allocated 64-byte region [ffff888102dcca00, ffff888102dcca40) [ 11.419414] [ 11.419486] The buggy address belongs to the physical page: [ 11.419827] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102dcc [ 11.420181] flags: 0x200000000000000(node=0|zone=2) [ 11.420426] page_type: f5(slab) [ 11.420580] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.421063] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.421363] page dumped because: kasan: bad access detected [ 11.421634] [ 11.421770] Memory state around the buggy address: [ 11.421999] ffff888102dcc900: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 11.422274] ffff888102dcc980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.422616] >ffff888102dcca00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.423546] ^ [ 11.423810] ffff888102dcca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.424062] ffff888102dccb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.424449] ==================================================================