Date
July 19, 2025, 11:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.294341] ================================================================== [ 15.294522] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.294584] Read of size 64 at addr fff00000c77cb504 by task kunit_try_catch/182 [ 15.294742] [ 15.294790] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.295155] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.295288] Hardware name: linux,dummy-virt (DT) [ 15.295327] Call trace: [ 15.295369] show_stack+0x20/0x38 (C) [ 15.295422] dump_stack_lvl+0x8c/0xd0 [ 15.295475] print_report+0x118/0x5d0 [ 15.295522] kasan_report+0xdc/0x128 [ 15.295890] kasan_check_range+0x100/0x1a8 [ 15.296232] __asan_memmove+0x3c/0x98 [ 15.296284] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.296355] kunit_try_run_case+0x170/0x3f0 [ 15.296764] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.296862] kthread+0x328/0x630 [ 15.297021] ret_from_fork+0x10/0x20 [ 15.297176] [ 15.297270] Allocated by task 182: [ 15.297323] kasan_save_stack+0x3c/0x68 [ 15.297641] kasan_save_track+0x20/0x40 [ 15.297766] kasan_save_alloc_info+0x40/0x58 [ 15.297929] __kasan_kmalloc+0xd4/0xd8 [ 15.298044] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.298201] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 15.298545] kunit_try_run_case+0x170/0x3f0 [ 15.298624] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.298751] kthread+0x328/0x630 [ 15.298836] ret_from_fork+0x10/0x20 [ 15.298873] [ 15.298920] The buggy address belongs to the object at fff00000c77cb500 [ 15.298920] which belongs to the cache kmalloc-64 of size 64 [ 15.299121] The buggy address is located 4 bytes inside of [ 15.299121] allocated 64-byte region [fff00000c77cb500, fff00000c77cb540) [ 15.299381] [ 15.299420] The buggy address belongs to the physical page: [ 15.299564] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077cb [ 15.299629] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.299804] page_type: f5(slab) [ 15.299913] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 15.300300] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 15.300373] page dumped because: kasan: bad access detected [ 15.300710] [ 15.300734] Memory state around the buggy address: [ 15.300770] fff00000c77cb400: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 15.300817] fff00000c77cb480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 15.301125] >fff00000c77cb500: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 15.301199] ^ [ 15.301513] fff00000c77cb580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.301561] fff00000c77cb600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.301630] ==================================================================
[ 12.236278] ================================================================== [ 12.236719] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.236982] Read of size 64 at addr ffff8881027e7184 by task kunit_try_catch/199 [ 12.238021] [ 12.238302] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.238364] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.238416] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.238449] Call Trace: [ 12.238461] <TASK> [ 12.238555] dump_stack_lvl+0x73/0xb0 [ 12.238590] print_report+0xd1/0x610 [ 12.238613] ? __virt_addr_valid+0x1db/0x2d0 [ 12.238638] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.238665] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.238690] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.238717] kasan_report+0x141/0x180 [ 12.238740] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.238771] kasan_check_range+0x10c/0x1c0 [ 12.238796] __asan_memmove+0x27/0x70 [ 12.238816] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.238843] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.238871] ? __schedule+0x10cc/0x2b60 [ 12.238895] ? __pfx_read_tsc+0x10/0x10 [ 12.238917] ? ktime_get_ts64+0x86/0x230 [ 12.238943] kunit_try_run_case+0x1a5/0x480 [ 12.238970] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.238995] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.239033] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.239059] ? __kthread_parkme+0x82/0x180 [ 12.239080] ? preempt_count_sub+0x50/0x80 [ 12.239106] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.239132] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.239158] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.239186] kthread+0x337/0x6f0 [ 12.239206] ? trace_preempt_on+0x20/0xc0 [ 12.239230] ? __pfx_kthread+0x10/0x10 [ 12.239251] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.239274] ? calculate_sigpending+0x7b/0xa0 [ 12.239299] ? __pfx_kthread+0x10/0x10 [ 12.239321] ret_from_fork+0x116/0x1d0 [ 12.239340] ? __pfx_kthread+0x10/0x10 [ 12.239362] ret_from_fork_asm+0x1a/0x30 [ 12.239394] </TASK> [ 12.239405] [ 12.254089] Allocated by task 199: [ 12.254236] kasan_save_stack+0x45/0x70 [ 12.254443] kasan_save_track+0x18/0x40 [ 12.254797] kasan_save_alloc_info+0x3b/0x50 [ 12.255203] __kasan_kmalloc+0xb7/0xc0 [ 12.255646] __kmalloc_cache_noprof+0x189/0x420 [ 12.256152] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.256695] kunit_try_run_case+0x1a5/0x480 [ 12.257089] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.257762] kthread+0x337/0x6f0 [ 12.257895] ret_from_fork+0x116/0x1d0 [ 12.258080] ret_from_fork_asm+0x1a/0x30 [ 12.258223] [ 12.258296] The buggy address belongs to the object at ffff8881027e7180 [ 12.258296] which belongs to the cache kmalloc-64 of size 64 [ 12.258706] The buggy address is located 4 bytes inside of [ 12.258706] allocated 64-byte region [ffff8881027e7180, ffff8881027e71c0) [ 12.259798] [ 12.259963] The buggy address belongs to the physical page: [ 12.260319] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027e7 [ 12.260652] flags: 0x200000000000000(node=0|zone=2) [ 12.260821] page_type: f5(slab) [ 12.260942] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.261214] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.261553] page dumped because: kasan: bad access detected [ 12.262116] [ 12.262301] Memory state around the buggy address: [ 12.262776] ffff8881027e7080: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 12.263701] ffff8881027e7100: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.264316] >ffff8881027e7180: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.265063] ^ [ 12.265636] ffff8881027e7200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.266258] ffff8881027e7280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.267101] ==================================================================