Date
July 6, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.074736] ================================================================== [ 18.074802] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 18.074858] Write of size 2 at addr fff00000c1cf4b77 by task kunit_try_catch/172 [ 18.074905] [ 18.074939] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.075018] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.075043] Hardware name: linux,dummy-virt (DT) [ 18.075085] Call trace: [ 18.075108] show_stack+0x20/0x38 (C) [ 18.075154] dump_stack_lvl+0x8c/0xd0 [ 18.075215] print_report+0x118/0x608 [ 18.075260] kasan_report+0xdc/0x128 [ 18.075312] kasan_check_range+0x100/0x1a8 [ 18.075359] __asan_memset+0x34/0x78 [ 18.075400] kmalloc_oob_memset_2+0x150/0x2f8 [ 18.075445] kunit_try_run_case+0x170/0x3f0 [ 18.075490] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.075540] kthread+0x328/0x630 [ 18.075580] ret_from_fork+0x10/0x20 [ 18.075631] [ 18.075651] Allocated by task 172: [ 18.075678] kasan_save_stack+0x3c/0x68 [ 18.075718] kasan_save_track+0x20/0x40 [ 18.075755] kasan_save_alloc_info+0x40/0x58 [ 18.075793] __kasan_kmalloc+0xd4/0xd8 [ 18.075830] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.075868] kmalloc_oob_memset_2+0xb0/0x2f8 [ 18.075904] kunit_try_run_case+0x170/0x3f0 [ 18.075939] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.075981] kthread+0x328/0x630 [ 18.076011] ret_from_fork+0x10/0x20 [ 18.076067] [ 18.076087] The buggy address belongs to the object at fff00000c1cf4b00 [ 18.076087] which belongs to the cache kmalloc-128 of size 128 [ 18.076141] The buggy address is located 119 bytes inside of [ 18.076141] allocated 120-byte region [fff00000c1cf4b00, fff00000c1cf4b78) [ 18.076478] [ 18.077054] The buggy address belongs to the physical page: [ 18.077113] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101cf4 [ 18.077180] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.077242] page_type: f5(slab) [ 18.077299] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.077386] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.077499] page dumped because: kasan: bad access detected [ 18.077544] [ 18.077571] Memory state around the buggy address: [ 18.077603] fff00000c1cf4a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.077644] fff00000c1cf4a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.077703] >fff00000c1cf4b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.077739] ^ [ 18.077778] fff00000c1cf4b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.077818] fff00000c1cf4c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.078303] ==================================================================
[ 11.681232] ================================================================== [ 11.681837] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 11.682164] Write of size 2 at addr ffff888102794177 by task kunit_try_catch/189 [ 11.682452] [ 11.682573] CPU: 1 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.682617] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.682629] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.682650] Call Trace: [ 11.682664] <TASK> [ 11.682682] dump_stack_lvl+0x73/0xb0 [ 11.682712] print_report+0xd1/0x650 [ 11.682735] ? __virt_addr_valid+0x1db/0x2d0 [ 11.682759] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.682780] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.682801] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.682822] kasan_report+0x141/0x180 [ 11.682844] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.682870] kasan_check_range+0x10c/0x1c0 [ 11.682893] __asan_memset+0x27/0x50 [ 11.682913] kmalloc_oob_memset_2+0x166/0x330 [ 11.682947] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.682969] ? __schedule+0x10cc/0x2b60 [ 11.682991] ? __pfx_read_tsc+0x10/0x10 [ 11.683013] ? ktime_get_ts64+0x86/0x230 [ 11.683038] kunit_try_run_case+0x1a5/0x480 [ 11.683123] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.683149] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.683173] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.683195] ? __kthread_parkme+0x82/0x180 [ 11.683217] ? preempt_count_sub+0x50/0x80 [ 11.683241] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.683264] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.683287] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.683309] kthread+0x337/0x6f0 [ 11.683329] ? trace_preempt_on+0x20/0xc0 [ 11.683352] ? __pfx_kthread+0x10/0x10 [ 11.683373] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.683394] ? calculate_sigpending+0x7b/0xa0 [ 11.683418] ? __pfx_kthread+0x10/0x10 [ 11.683439] ret_from_fork+0x116/0x1d0 [ 11.683458] ? __pfx_kthread+0x10/0x10 [ 11.683601] ret_from_fork_asm+0x1a/0x30 [ 11.683638] </TASK> [ 11.683650] [ 11.691752] Allocated by task 189: [ 11.691957] kasan_save_stack+0x45/0x70 [ 11.692106] kasan_save_track+0x18/0x40 [ 11.692310] kasan_save_alloc_info+0x3b/0x50 [ 11.692570] __kasan_kmalloc+0xb7/0xc0 [ 11.692727] __kmalloc_cache_noprof+0x189/0x420 [ 11.692917] kmalloc_oob_memset_2+0xac/0x330 [ 11.693221] kunit_try_run_case+0x1a5/0x480 [ 11.693401] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.693743] kthread+0x337/0x6f0 [ 11.693924] ret_from_fork+0x116/0x1d0 [ 11.694096] ret_from_fork_asm+0x1a/0x30 [ 11.694290] [ 11.694365] The buggy address belongs to the object at ffff888102794100 [ 11.694365] which belongs to the cache kmalloc-128 of size 128 [ 11.694894] The buggy address is located 119 bytes inside of [ 11.694894] allocated 120-byte region [ffff888102794100, ffff888102794178) [ 11.695404] [ 11.695566] The buggy address belongs to the physical page: [ 11.695784] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102794 [ 11.696128] flags: 0x200000000000000(node=0|zone=2) [ 11.696481] page_type: f5(slab) [ 11.696716] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.697043] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.697371] page dumped because: kasan: bad access detected [ 11.697547] [ 11.697618] Memory state around the buggy address: [ 11.697774] ffff888102794000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.698018] ffff888102794080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.698336] >ffff888102794100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.698666] ^ [ 11.698919] ffff888102794180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.699422] ffff888102794200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.700079] ==================================================================