Date
June 2, 2025, 2:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.969736] ================================================================== [ 17.971080] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 17.971523] Write of size 1 at addr fff00000c6559f00 by task kunit_try_catch/134 [ 17.971758] [ 17.971875] CPU: 0 UID: 0 PID: 134 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 17.971971] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.972000] Hardware name: linux,dummy-virt (DT) [ 17.972035] Call trace: [ 17.972061] show_stack+0x20/0x38 (C) [ 17.972119] dump_stack_lvl+0x8c/0xd0 [ 17.972200] print_report+0x118/0x608 [ 17.972253] kasan_report+0xdc/0x128 [ 17.972302] __asan_report_store1_noabort+0x20/0x30 [ 17.972351] kmalloc_big_oob_right+0x2a4/0x2f0 [ 17.972398] kunit_try_run_case+0x170/0x3f0 [ 17.972448] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.972502] kthread+0x318/0x620 [ 17.972550] ret_from_fork+0x10/0x20 [ 17.972605] [ 17.977208] Allocated by task 134: [ 17.977783] kasan_save_stack+0x3c/0x68 [ 17.978784] kasan_save_track+0x20/0x40 [ 17.979197] kasan_save_alloc_info+0x40/0x58 [ 17.979537] __kasan_kmalloc+0xd4/0xd8 [ 17.979840] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.980246] kmalloc_big_oob_right+0xb8/0x2f0 [ 17.980604] kunit_try_run_case+0x170/0x3f0 [ 17.980936] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.981923] kthread+0x318/0x620 [ 17.982534] ret_from_fork+0x10/0x20 [ 17.983084] [ 17.983344] The buggy address belongs to the object at fff00000c6558000 [ 17.983344] which belongs to the cache kmalloc-8k of size 8192 [ 17.984326] The buggy address is located 0 bytes to the right of [ 17.984326] allocated 7936-byte region [fff00000c6558000, fff00000c6559f00) [ 17.985325] [ 17.985596] The buggy address belongs to the physical page: [ 17.986389] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106558 [ 17.987102] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.987636] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.988096] page_type: f5(slab) [ 17.988387] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 17.988933] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 17.989491] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 17.989955] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 17.991484] head: 0bfffe0000000003 ffffc1ffc3195601 ffffffffffffffff 0000000000000000 [ 17.992359] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 17.992994] page dumped because: kasan: bad access detected [ 17.993491] [ 17.993766] Memory state around the buggy address: [ 17.994384] fff00000c6559e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.994715] fff00000c6559e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.995038] >fff00000c6559f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.995360] ^ [ 17.995559] fff00000c6559f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.995885] fff00000c655a000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.996820] ==================================================================
[ 12.197208] ================================================================== [ 12.197836] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x318/0x370 [ 12.198136] Write of size 1 at addr ffff888102bc1f00 by task kunit_try_catch/152 [ 12.198430] [ 12.198540] CPU: 1 UID: 0 PID: 152 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 12.198580] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.198591] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.198610] Call Trace: [ 12.198623] <TASK> [ 12.198638] dump_stack_lvl+0x73/0xb0 [ 12.198664] print_report+0xd1/0x650 [ 12.198734] ? __virt_addr_valid+0x1db/0x2d0 [ 12.198758] ? kmalloc_big_oob_right+0x318/0x370 [ 12.198779] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.198816] ? kmalloc_big_oob_right+0x318/0x370 [ 12.198837] kasan_report+0x140/0x180 [ 12.198858] ? kmalloc_big_oob_right+0x318/0x370 [ 12.198883] __asan_report_store1_noabort+0x1b/0x30 [ 12.198906] kmalloc_big_oob_right+0x318/0x370 [ 12.198927] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 12.198948] ? __schedule+0xce8/0x2840 [ 12.198971] ? __pfx_read_tsc+0x10/0x10 [ 12.198993] ? ktime_get_ts64+0x86/0x230 [ 12.199026] kunit_try_run_case+0x1a6/0x480 [ 12.199059] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.199079] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 12.199102] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.199137] ? __kthread_parkme+0x82/0x160 [ 12.199158] ? preempt_count_sub+0x50/0x80 [ 12.199182] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.199214] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.199240] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.199265] kthread+0x324/0x6e0 [ 12.199285] ? trace_preempt_on+0x20/0xc0 [ 12.199308] ? __pfx_kthread+0x10/0x10 [ 12.199329] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.199350] ? calculate_sigpending+0x7b/0xa0 [ 12.199372] ? __pfx_kthread+0x10/0x10 [ 12.199393] ret_from_fork+0x41/0x80 [ 12.199411] ? __pfx_kthread+0x10/0x10 [ 12.199432] ret_from_fork_asm+0x1a/0x30 [ 12.199462] </TASK> [ 12.199472] [ 12.207132] Allocated by task 152: [ 12.207831] kasan_save_stack+0x45/0x70 [ 12.208795] kasan_save_track+0x18/0x40 [ 12.208993] kasan_save_alloc_info+0x3b/0x50 [ 12.209431] __kasan_kmalloc+0xb7/0xc0 [ 12.209945] __kmalloc_cache_noprof+0x18a/0x420 [ 12.210463] kmalloc_big_oob_right+0xaa/0x370 [ 12.210927] kunit_try_run_case+0x1a6/0x480 [ 12.211369] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.211551] kthread+0x324/0x6e0 [ 12.211971] ret_from_fork+0x41/0x80 [ 12.212406] ret_from_fork_asm+0x1a/0x30 [ 12.212915] [ 12.213253] The buggy address belongs to the object at ffff888102bc0000 [ 12.213253] which belongs to the cache kmalloc-8k of size 8192 [ 12.214381] The buggy address is located 0 bytes to the right of [ 12.214381] allocated 7936-byte region [ffff888102bc0000, ffff888102bc1f00) [ 12.215250] [ 12.215421] The buggy address belongs to the physical page: [ 12.216051] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102bc0 [ 12.216293] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.216508] flags: 0x200000000000040(head|node=0|zone=2) [ 12.216695] page_type: f5(slab) [ 12.216894] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 12.217534] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 12.217917] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 12.218244] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 12.218559] head: 0200000000000003 ffffea00040af001 ffffffffffffffff 0000000000000000 [ 12.218868] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 12.219184] page dumped because: kasan: bad access detected [ 12.219416] [ 12.219494] Memory state around the buggy address: [ 12.219716] ffff888102bc1e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.220005] ffff888102bc1e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.221004] >ffff888102bc1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.221485] ^ [ 12.221620] ffff888102bc1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.222058] ffff888102bc2000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.222456] ==================================================================