Date
May 13, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.412984] ================================================================== [ 19.413102] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.413194] Read of size 64 at addr fff00000c7785c04 by task kunit_try_catch/182 [ 19.413252] [ 19.413304] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT [ 19.413406] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.414138] Hardware name: linux,dummy-virt (DT) [ 19.414740] Call trace: [ 19.415044] show_stack+0x20/0x38 (C) [ 19.415160] dump_stack_lvl+0x8c/0xd0 [ 19.415229] print_report+0x118/0x608 [ 19.415279] kasan_report+0xdc/0x128 [ 19.415813] kasan_check_range+0x100/0x1a8 [ 19.416197] __asan_memmove+0x3c/0x98 [ 19.416260] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.416413] kunit_try_run_case+0x170/0x3f0 [ 19.416535] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.416880] kthread+0x328/0x630 [ 19.417070] ret_from_fork+0x10/0x20 [ 19.417325] [ 19.417376] Allocated by task 182: [ 19.417458] kasan_save_stack+0x3c/0x68 [ 19.417516] kasan_save_track+0x20/0x40 [ 19.417742] kasan_save_alloc_info+0x40/0x58 [ 19.417791] __kasan_kmalloc+0xd4/0xd8 [ 19.418078] __kmalloc_cache_noprof+0x15c/0x3c0 [ 19.418172] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 19.418220] kunit_try_run_case+0x170/0x3f0 [ 19.418263] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.418309] kthread+0x328/0x630 [ 19.418350] ret_from_fork+0x10/0x20 [ 19.418390] [ 19.418416] The buggy address belongs to the object at fff00000c7785c00 [ 19.418416] which belongs to the cache kmalloc-64 of size 64 [ 19.418482] The buggy address is located 4 bytes inside of [ 19.418482] allocated 64-byte region [fff00000c7785c00, fff00000c7785c40) [ 19.418559] [ 19.418717] The buggy address belongs to the physical page: [ 19.418865] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107785 [ 19.419156] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.419229] page_type: f5(slab) [ 19.419477] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 19.419734] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 19.419800] page dumped because: kasan: bad access detected [ 19.419852] [ 19.420037] Memory state around the buggy address: [ 19.420208] fff00000c7785b00: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 19.420535] fff00000c7785b80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 19.420654] >fff00000c7785c00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 19.420727] ^ [ 19.420810] fff00000c7785c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.420903] fff00000c7785d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.420959] ==================================================================
[ 11.317386] ================================================================== [ 11.318078] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.318699] Read of size 64 at addr ffff8881029cfc84 by task kunit_try_catch/199 [ 11.319481] [ 11.319710] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) [ 11.319760] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.319772] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.319792] Call Trace: [ 11.319805] <TASK> [ 11.319820] dump_stack_lvl+0x73/0xb0 [ 11.319848] print_report+0xd1/0x650 [ 11.319872] ? __virt_addr_valid+0x1db/0x2d0 [ 11.319894] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.319918] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.319939] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.319964] kasan_report+0x141/0x180 [ 11.319985] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.320014] kasan_check_range+0x10c/0x1c0 [ 11.320038] __asan_memmove+0x27/0x70 [ 11.320060] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.320084] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.320109] ? __schedule+0x10cc/0x2b60 [ 11.320131] ? __pfx_read_tsc+0x10/0x10 [ 11.320151] ? ktime_get_ts64+0x86/0x230 [ 11.320176] kunit_try_run_case+0x1a5/0x480 [ 11.320200] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.320221] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.320243] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.320264] ? __kthread_parkme+0x82/0x180 [ 11.320284] ? preempt_count_sub+0x50/0x80 [ 11.320308] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.320330] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.320352] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.320374] kthread+0x337/0x6f0 [ 11.320394] ? trace_preempt_on+0x20/0xc0 [ 11.320416] ? __pfx_kthread+0x10/0x10 [ 11.320437] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.320456] ? calculate_sigpending+0x7b/0xa0 [ 11.320479] ? __pfx_kthread+0x10/0x10 [ 11.320501] ret_from_fork+0x116/0x1d0 [ 11.320518] ? __pfx_kthread+0x10/0x10 [ 11.320558] ret_from_fork_asm+0x1a/0x30 [ 11.320588] </TASK> [ 11.320599] [ 11.328858] Allocated by task 199: [ 11.328988] kasan_save_stack+0x45/0x70 [ 11.329135] kasan_save_track+0x18/0x40 [ 11.329272] kasan_save_alloc_info+0x3b/0x50 [ 11.329417] __kasan_kmalloc+0xb7/0xc0 [ 11.329549] __kmalloc_cache_noprof+0x189/0x420 [ 11.330602] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.331443] kunit_try_run_case+0x1a5/0x480 [ 11.332232] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.333080] kthread+0x337/0x6f0 [ 11.333743] ret_from_fork+0x116/0x1d0 [ 11.334390] ret_from_fork_asm+0x1a/0x30 [ 11.335074] [ 11.335504] The buggy address belongs to the object at ffff8881029cfc80 [ 11.335504] which belongs to the cache kmalloc-64 of size 64 [ 11.337207] The buggy address is located 4 bytes inside of [ 11.337207] allocated 64-byte region [ffff8881029cfc80, ffff8881029cfcc0) [ 11.339104] [ 11.339533] The buggy address belongs to the physical page: [ 11.340571] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029cf [ 11.341483] flags: 0x200000000000000(node=0|zone=2) [ 11.341850] page_type: f5(slab) [ 11.341984] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.342645] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.343484] page dumped because: kasan: bad access detected [ 11.344325] [ 11.344702] Memory state around the buggy address: [ 11.345084] ffff8881029cfb80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.345690] ffff8881029cfc00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.346228] >ffff8881029cfc80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.346838] ^ [ 11.347010] ffff8881029cfd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.347681] ffff8881029cfd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.348290] ==================================================================