Date
July 5, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.096959] ================================================================== [ 19.097063] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.097175] Read of size 64 at addr fff00000c78aa404 by task kunit_try_catch/183 [ 19.097274] [ 19.097801] CPU: 0 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.098087] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.098164] Hardware name: linux,dummy-virt (DT) [ 19.098245] Call trace: [ 19.098507] show_stack+0x20/0x38 (C) [ 19.098646] dump_stack_lvl+0x8c/0xd0 [ 19.098743] print_report+0x118/0x608 [ 19.098830] kasan_report+0xdc/0x128 [ 19.098923] kasan_check_range+0x100/0x1a8 [ 19.099283] __asan_memmove+0x3c/0x98 [ 19.099401] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.099906] kunit_try_run_case+0x170/0x3f0 [ 19.100235] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.100877] kthread+0x328/0x630 [ 19.101013] ret_from_fork+0x10/0x20 [ 19.101130] [ 19.101389] Allocated by task 183: [ 19.101681] kasan_save_stack+0x3c/0x68 [ 19.101821] kasan_save_track+0x20/0x40 [ 19.101899] kasan_save_alloc_info+0x40/0x58 [ 19.101982] __kasan_kmalloc+0xd4/0xd8 [ 19.102053] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.102122] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 19.102195] kunit_try_run_case+0x170/0x3f0 [ 19.102269] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.102684] kthread+0x328/0x630 [ 19.102792] ret_from_fork+0x10/0x20 [ 19.102890] [ 19.102936] The buggy address belongs to the object at fff00000c78aa400 [ 19.102936] which belongs to the cache kmalloc-64 of size 64 [ 19.103104] The buggy address is located 4 bytes inside of [ 19.103104] allocated 64-byte region [fff00000c78aa400, fff00000c78aa440) [ 19.103249] [ 19.103299] The buggy address belongs to the physical page: [ 19.103381] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078aa [ 19.103503] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.103614] page_type: f5(slab) [ 19.103707] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 19.103826] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 19.103922] page dumped because: kasan: bad access detected [ 19.103994] [ 19.104036] Memory state around the buggy address: [ 19.104110] fff00000c78aa300: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 19.104212] fff00000c78aa380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 19.104309] >fff00000c78aa400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 19.104702] ^ [ 19.105132] fff00000c78aa480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.105411] fff00000c78aa500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.105563] ==================================================================
[ 13.846291] ================================================================== [ 13.846868] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.847195] Read of size 64 at addr ffff88810332da84 by task kunit_try_catch/199 [ 13.847466] [ 13.847581] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.847638] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.848216] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.848252] Call Trace: [ 13.848270] <TASK> [ 13.848294] dump_stack_lvl+0x73/0xb0 [ 13.848335] print_report+0xd1/0x650 [ 13.848373] ? __virt_addr_valid+0x1db/0x2d0 [ 13.848403] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.848431] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.848456] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.848485] kasan_report+0x141/0x180 [ 13.848510] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.848544] kasan_check_range+0x10c/0x1c0 [ 13.848571] __asan_memmove+0x27/0x70 [ 13.848594] kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.848622] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 13.848663] ? __schedule+0x10cc/0x2b60 [ 13.848689] ? __pfx_read_tsc+0x10/0x10 [ 13.848715] ? ktime_get_ts64+0x86/0x230 [ 13.848745] kunit_try_run_case+0x1a5/0x480 [ 13.849522] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.849558] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.849589] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.849617] ? __kthread_parkme+0x82/0x180 [ 13.849644] ? preempt_count_sub+0x50/0x80 [ 13.849691] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.849718] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.849744] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.849832] kthread+0x337/0x6f0 [ 13.849856] ? trace_preempt_on+0x20/0xc0 [ 13.849884] ? __pfx_kthread+0x10/0x10 [ 13.849907] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.849932] ? calculate_sigpending+0x7b/0xa0 [ 13.849960] ? __pfx_kthread+0x10/0x10 [ 13.849985] ret_from_fork+0x116/0x1d0 [ 13.850007] ? __pfx_kthread+0x10/0x10 [ 13.850030] ret_from_fork_asm+0x1a/0x30 [ 13.850068] </TASK> [ 13.850082] [ 13.864965] Allocated by task 199: [ 13.865269] kasan_save_stack+0x45/0x70 [ 13.865572] kasan_save_track+0x18/0x40 [ 13.865856] kasan_save_alloc_info+0x3b/0x50 [ 13.866043] __kasan_kmalloc+0xb7/0xc0 [ 13.866268] __kmalloc_cache_noprof+0x189/0x420 [ 13.866542] kmalloc_memmove_invalid_size+0xac/0x330 [ 13.866766] kunit_try_run_case+0x1a5/0x480 [ 13.867031] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.867340] kthread+0x337/0x6f0 [ 13.867527] ret_from_fork+0x116/0x1d0 [ 13.867729] ret_from_fork_asm+0x1a/0x30 [ 13.868346] [ 13.868460] The buggy address belongs to the object at ffff88810332da80 [ 13.868460] which belongs to the cache kmalloc-64 of size 64 [ 13.869121] The buggy address is located 4 bytes inside of [ 13.869121] allocated 64-byte region [ffff88810332da80, ffff88810332dac0) [ 13.869700] [ 13.869809] The buggy address belongs to the physical page: [ 13.870038] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10332d [ 13.870332] flags: 0x200000000000000(node=0|zone=2) [ 13.870620] page_type: f5(slab) [ 13.870916] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 13.871326] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 13.871750] page dumped because: kasan: bad access detected [ 13.872075] [ 13.872193] Memory state around the buggy address: [ 13.872395] ffff88810332d980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 13.872678] ffff88810332da00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 13.873418] >ffff88810332da80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 13.873777] ^ [ 13.874139] ffff88810332db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.874478] ffff88810332db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.875023] ==================================================================