Date
June 23, 2025, 1:39 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.757316] ================================================================== [ 24.757504] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 24.757646] Write of size 8 at addr fff00000c76cf171 by task kunit_try_catch/178 [ 24.757758] [ 24.757843] CPU: 0 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT [ 24.758057] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.758211] Hardware name: linux,dummy-virt (DT) [ 24.758330] Call trace: [ 24.758442] show_stack+0x20/0x38 (C) [ 24.758624] dump_stack_lvl+0x8c/0xd0 [ 24.758755] print_report+0x118/0x608 [ 24.758878] kasan_report+0xdc/0x128 [ 24.758998] kasan_check_range+0x100/0x1a8 [ 24.759125] __asan_memset+0x34/0x78 [ 24.759323] kmalloc_oob_memset_8+0x150/0x2f8 [ 24.759471] kunit_try_run_case+0x170/0x3f0 [ 24.759593] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.759723] kthread+0x328/0x630 [ 24.759832] ret_from_fork+0x10/0x20 [ 24.759945] [ 24.760028] Allocated by task 178: [ 24.760113] kasan_save_stack+0x3c/0x68 [ 24.760219] kasan_save_track+0x20/0x40 [ 24.760322] kasan_save_alloc_info+0x40/0x58 [ 24.760447] __kasan_kmalloc+0xd4/0xd8 [ 24.760614] __kmalloc_cache_noprof+0x16c/0x3c0 [ 24.760758] kmalloc_oob_memset_8+0xb0/0x2f8 [ 24.761019] kunit_try_run_case+0x170/0x3f0 [ 24.761117] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.761235] kthread+0x328/0x630 [ 24.761321] ret_from_fork+0x10/0x20 [ 24.761422] [ 24.761471] The buggy address belongs to the object at fff00000c76cf100 [ 24.761471] which belongs to the cache kmalloc-128 of size 128 [ 24.761592] The buggy address is located 113 bytes inside of [ 24.761592] allocated 120-byte region [fff00000c76cf100, fff00000c76cf178) [ 24.762244] [ 24.762626] The buggy address belongs to the physical page: [ 24.762745] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076cf [ 24.763288] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.763426] page_type: f5(slab) [ 24.763833] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 24.763983] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.764673] page dumped because: kasan: bad access detected [ 24.764753] [ 24.764797] Memory state around the buggy address: [ 24.764871] fff00000c76cf000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.765365] fff00000c76cf080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.765680] >fff00000c76cf100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 24.765996] ^ [ 24.766225] fff00000c76cf180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.766336] fff00000c76cf200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.766453] ==================================================================
[ 17.369357] ================================================================== [ 17.370444] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 17.371418] Write of size 8 at addr ffff88810a06f671 by task kunit_try_catch/197 [ 17.372548] [ 17.373226] CPU: 1 UID: 0 PID: 197 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT(voluntary) [ 17.373348] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.373383] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.373438] Call Trace: [ 17.373475] <TASK> [ 17.373519] dump_stack_lvl+0x73/0xb0 [ 17.373588] print_report+0xd1/0x650 [ 17.373675] ? __virt_addr_valid+0x1db/0x2d0 [ 17.373765] ? kmalloc_oob_memset_8+0x166/0x330 [ 17.373820] ? kasan_complete_mode_report_info+0x2a/0x200 [ 17.373853] ? kmalloc_oob_memset_8+0x166/0x330 [ 17.373887] kasan_report+0x141/0x180 [ 17.373919] ? kmalloc_oob_memset_8+0x166/0x330 [ 17.373957] kasan_check_range+0x10c/0x1c0 [ 17.373984] __asan_memset+0x27/0x50 [ 17.374012] kmalloc_oob_memset_8+0x166/0x330 [ 17.374045] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 17.374077] ? __schedule+0x10cc/0x2b60 [ 17.374109] ? __pfx_read_tsc+0x10/0x10 [ 17.374137] ? ktime_get_ts64+0x86/0x230 [ 17.374174] kunit_try_run_case+0x1a5/0x480 [ 17.374211] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.374243] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 17.374277] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 17.374309] ? __kthread_parkme+0x82/0x180 [ 17.374339] ? preempt_count_sub+0x50/0x80 [ 17.374402] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.374440] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.374472] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 17.374504] kthread+0x337/0x6f0 [ 17.374525] ? trace_preempt_on+0x20/0xc0 [ 17.374558] ? __pfx_kthread+0x10/0x10 [ 17.374582] ? _raw_spin_unlock_irq+0x47/0x80 [ 17.374714] ? calculate_sigpending+0x7b/0xa0 [ 17.374756] ? __pfx_kthread+0x10/0x10 [ 17.374783] ret_from_fork+0x41/0x80 [ 17.374814] ? __pfx_kthread+0x10/0x10 [ 17.374839] ret_from_fork_asm+0x1a/0x30 [ 17.374881] </TASK> [ 17.374895] [ 17.395559] Allocated by task 197: [ 17.395822] kasan_save_stack+0x45/0x70 [ 17.396085] kasan_save_track+0x18/0x40 [ 17.396332] kasan_save_alloc_info+0x3b/0x50 [ 17.396587] __kasan_kmalloc+0xb7/0xc0 [ 17.400768] __kmalloc_cache_noprof+0x189/0x420 [ 17.403285] kmalloc_oob_memset_8+0xac/0x330 [ 17.404819] kunit_try_run_case+0x1a5/0x480 [ 17.406148] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.407730] kthread+0x337/0x6f0 [ 17.409000] ret_from_fork+0x41/0x80 [ 17.410651] ret_from_fork_asm+0x1a/0x30 [ 17.412118] [ 17.413320] The buggy address belongs to the object at ffff88810a06f600 [ 17.413320] which belongs to the cache kmalloc-128 of size 128 [ 17.416481] The buggy address is located 113 bytes inside of [ 17.416481] allocated 120-byte region [ffff88810a06f600, ffff88810a06f678) [ 17.417078] [ 17.417226] The buggy address belongs to the physical page: [ 17.417514] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10a06f [ 17.421912] flags: 0x200000000000000(node=0|zone=2) [ 17.423665] page_type: f5(slab) [ 17.424945] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 17.427295] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.427751] page dumped because: kasan: bad access detected [ 17.428043] [ 17.428182] Memory state around the buggy address: [ 17.428443] ffff88810a06f500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.432290] ffff88810a06f580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.434143] >ffff88810a06f600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.436340] ^ [ 17.438085] ffff88810a06f680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.438471] ffff88810a06f700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.438847] ==================================================================