Date
July 17, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.725836] ================================================================== [ 16.726089] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 16.726211] Read of size 18446744073709551614 at addr fff00000c7848804 by task kunit_try_catch/180 [ 16.726364] [ 16.726466] CPU: 1 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.726552] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.726901] Hardware name: linux,dummy-virt (DT) [ 16.726954] Call trace: [ 16.726980] show_stack+0x20/0x38 (C) [ 16.727034] dump_stack_lvl+0x8c/0xd0 [ 16.727152] print_report+0x118/0x5d0 [ 16.727272] kasan_report+0xdc/0x128 [ 16.727545] kasan_check_range+0x100/0x1a8 [ 16.727599] __asan_memmove+0x3c/0x98 [ 16.727809] kmalloc_memmove_negative_size+0x154/0x2e0 [ 16.728253] kunit_try_run_case+0x170/0x3f0 [ 16.728322] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.728373] kthread+0x328/0x630 [ 16.729244] ret_from_fork+0x10/0x20 [ 16.729537] [ 16.729650] Allocated by task 180: [ 16.729822] kasan_save_stack+0x3c/0x68 [ 16.730233] kasan_save_track+0x20/0x40 [ 16.730433] kasan_save_alloc_info+0x40/0x58 [ 16.730653] __kasan_kmalloc+0xd4/0xd8 [ 16.730750] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.731162] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 16.731497] kunit_try_run_case+0x170/0x3f0 [ 16.731610] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.731729] kthread+0x328/0x630 [ 16.731836] ret_from_fork+0x10/0x20 [ 16.732505] [ 16.732581] The buggy address belongs to the object at fff00000c7848800 [ 16.732581] which belongs to the cache kmalloc-64 of size 64 [ 16.732691] The buggy address is located 4 bytes inside of [ 16.732691] 64-byte region [fff00000c7848800, fff00000c7848840) [ 16.732933] [ 16.733074] The buggy address belongs to the physical page: [ 16.733343] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107848 [ 16.733451] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.733661] page_type: f5(slab) [ 16.733915] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 16.734033] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 16.734144] page dumped because: kasan: bad access detected [ 16.734229] [ 16.734357] Memory state around the buggy address: [ 16.734414] fff00000c7848700: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 16.734810] fff00000c7848780: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 16.734900] >fff00000c7848800: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 16.735017] ^ [ 16.735106] fff00000c7848880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.735183] fff00000c7848900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.735330] ==================================================================
[ 12.450006] ================================================================== [ 12.450502] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x171/0x330 [ 12.451077] Read of size 18446744073709551614 at addr ffff888102f3bf84 by task kunit_try_catch/197 [ 12.451523] [ 12.451655] CPU: 0 UID: 0 PID: 197 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.451706] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.451717] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.451741] Call Trace: [ 12.451755] <TASK> [ 12.451776] dump_stack_lvl+0x73/0xb0 [ 12.451810] print_report+0xd1/0x610 [ 12.451833] ? __virt_addr_valid+0x1db/0x2d0 [ 12.452096] ? kmalloc_memmove_negative_size+0x171/0x330 [ 12.452127] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.452150] ? kmalloc_memmove_negative_size+0x171/0x330 [ 12.452196] kasan_report+0x141/0x180 [ 12.452218] ? kmalloc_memmove_negative_size+0x171/0x330 [ 12.452248] kasan_check_range+0x10c/0x1c0 [ 12.452271] __asan_memmove+0x27/0x70 [ 12.452290] kmalloc_memmove_negative_size+0x171/0x330 [ 12.452312] ? __kasan_check_write+0x18/0x20 [ 12.452331] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 12.452355] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 12.452381] ? trace_hardirqs_on+0x37/0xe0 [ 12.452405] ? __pfx_read_tsc+0x10/0x10 [ 12.452426] ? ktime_get_ts64+0x86/0x230 [ 12.452451] kunit_try_run_case+0x1a5/0x480 [ 12.452479] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.452502] ? queued_spin_lock_slowpath+0x116/0xb40 [ 12.452527] ? __kthread_parkme+0x82/0x180 [ 12.452547] ? preempt_count_sub+0x50/0x80 [ 12.452572] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.452607] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.452630] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.452652] kthread+0x337/0x6f0 [ 12.452671] ? trace_preempt_on+0x20/0xc0 [ 12.452692] ? __pfx_kthread+0x10/0x10 [ 12.452711] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.452732] ? calculate_sigpending+0x7b/0xa0 [ 12.452756] ? __pfx_kthread+0x10/0x10 [ 12.452776] ret_from_fork+0x116/0x1d0 [ 12.452794] ? __pfx_kthread+0x10/0x10 [ 12.452831] ret_from_fork_asm+0x1a/0x30 [ 12.452864] </TASK> [ 12.452875] [ 12.464104] Allocated by task 197: [ 12.464305] kasan_save_stack+0x45/0x70 [ 12.464491] kasan_save_track+0x18/0x40 [ 12.464718] kasan_save_alloc_info+0x3b/0x50 [ 12.465341] __kasan_kmalloc+0xb7/0xc0 [ 12.465615] __kmalloc_cache_noprof+0x189/0x420 [ 12.465792] kmalloc_memmove_negative_size+0xac/0x330 [ 12.466208] kunit_try_run_case+0x1a5/0x480 [ 12.466418] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.466860] kthread+0x337/0x6f0 [ 12.467001] ret_from_fork+0x116/0x1d0 [ 12.467212] ret_from_fork_asm+0x1a/0x30 [ 12.467388] [ 12.467482] The buggy address belongs to the object at ffff888102f3bf80 [ 12.467482] which belongs to the cache kmalloc-64 of size 64 [ 12.468398] The buggy address is located 4 bytes inside of [ 12.468398] 64-byte region [ffff888102f3bf80, ffff888102f3bfc0) [ 12.469244] [ 12.469330] The buggy address belongs to the physical page: [ 12.469674] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102f3b [ 12.470035] flags: 0x200000000000000(node=0|zone=2) [ 12.470302] page_type: f5(slab) [ 12.470443] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.470751] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.471140] page dumped because: kasan: bad access detected [ 12.471593] [ 12.471683] Memory state around the buggy address: [ 12.471856] ffff888102f3be80: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 12.472265] ffff888102f3bf00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.472741] >ffff888102f3bf80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.472971] ^ [ 12.473298] ffff888102f3c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.473596] ffff888102f3c080: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.473878] ==================================================================