Date
May 12, 2025, 6:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.697634] ================================================================== [ 18.698363] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 18.699474] Write of size 2 at addr fff00000c59c2777 by task kunit_try_catch/161 [ 18.700508] [ 18.700885] CPU: 1 UID: 0 PID: 161 Comm: kunit_try_catch Tainted: G B N 6.14.7-rc1 #1 [ 18.701040] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.701108] Hardware name: linux,dummy-virt (DT) [ 18.701347] Call trace: [ 18.701384] show_stack+0x20/0x38 (C) [ 18.701454] dump_stack_lvl+0x8c/0xd0 [ 18.701510] print_report+0x118/0x608 [ 18.701562] kasan_report+0xdc/0x128 [ 18.701611] kasan_check_range+0x100/0x1a8 [ 18.701663] __asan_memset+0x34/0x78 [ 18.701710] kmalloc_oob_memset_2+0x150/0x2f8 [ 18.701786] kunit_try_run_case+0x170/0x3f0 [ 18.701844] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.701900] kthread+0x318/0x620 [ 18.701949] ret_from_fork+0x10/0x20 [ 18.702004] [ 18.707775] Allocated by task 161: [ 18.708305] kasan_save_stack+0x3c/0x68 [ 18.708796] kasan_save_track+0x20/0x40 [ 18.709233] kasan_save_alloc_info+0x40/0x58 [ 18.709703] __kasan_kmalloc+0xd4/0xd8 [ 18.710152] __kmalloc_cache_noprof+0x15c/0x3c0 [ 18.710924] kmalloc_oob_memset_2+0xb0/0x2f8 [ 18.711325] kunit_try_run_case+0x170/0x3f0 [ 18.711860] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.712458] kthread+0x318/0x620 [ 18.712915] ret_from_fork+0x10/0x20 [ 18.713371] [ 18.713671] The buggy address belongs to the object at fff00000c59c2700 [ 18.713671] which belongs to the cache kmalloc-128 of size 128 [ 18.714902] The buggy address is located 119 bytes inside of [ 18.714902] allocated 120-byte region [fff00000c59c2700, fff00000c59c2778) [ 18.716234] [ 18.716438] The buggy address belongs to the physical page: [ 18.716629] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059c2 [ 18.716906] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.717130] page_type: f5(slab) [ 18.717284] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.717518] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.717770] page dumped because: kasan: bad access detected [ 18.718371] [ 18.718647] Memory state around the buggy address: [ 18.720213] fff00000c59c2600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.721168] fff00000c59c2680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.721830] >fff00000c59c2700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.722352] ^ [ 18.723252] fff00000c59c2780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.723912] fff00000c59c2800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.724634] ==================================================================
[ 12.485378] ================================================================== [ 12.485817] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x167/0x330 [ 12.486091] Write of size 2 at addr ffff888101b0ea77 by task kunit_try_catch/180 [ 12.486318] [ 12.486406] CPU: 1 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.14.7-rc1 #1 [ 12.486453] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.486465] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.486486] Call Trace: [ 12.486500] <TASK> [ 12.486520] dump_stack_lvl+0x73/0xb0 [ 12.486548] print_report+0xd1/0x650 [ 12.486570] ? __virt_addr_valid+0x1db/0x2d0 [ 12.486592] ? kmalloc_oob_memset_2+0x167/0x330 [ 12.486613] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.486637] ? kmalloc_oob_memset_2+0x167/0x330 [ 12.486657] kasan_report+0x140/0x180 [ 12.486678] ? kmalloc_oob_memset_2+0x167/0x330 [ 12.486702] kasan_check_range+0x10c/0x1c0 [ 12.486724] __asan_memset+0x27/0x50 [ 12.486746] kmalloc_oob_memset_2+0x167/0x330 [ 12.486767] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.486788] ? __schedule+0xce8/0x2840 [ 12.486812] ? __pfx_read_tsc+0x10/0x10 [ 12.486834] ? ktime_get_ts64+0x86/0x230 [ 12.486910] kunit_try_run_case+0x1a6/0x480 [ 12.486934] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.486955] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 12.486975] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.487000] ? __kthread_parkme+0x82/0x160 [ 12.487022] ? preempt_count_sub+0x50/0x80 [ 12.487344] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.487370] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.487396] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.487788] kthread+0x324/0x6e0 [ 12.487820] ? trace_preempt_on+0x20/0xc0 [ 12.487857] ? __pfx_kthread+0x10/0x10 [ 12.487879] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.488138] ? calculate_sigpending+0x7b/0xa0 [ 12.488164] ? __pfx_kthread+0x10/0x10 [ 12.488186] ret_from_fork+0x41/0x80 [ 12.488207] ? __pfx_kthread+0x10/0x10 [ 12.488228] ret_from_fork_asm+0x1a/0x30 [ 12.488260] </TASK> [ 12.488271] [ 12.502198] Allocated by task 180: [ 12.502562] kasan_save_stack+0x45/0x70 [ 12.502945] kasan_save_track+0x18/0x40 [ 12.503592] kasan_save_alloc_info+0x3b/0x50 [ 12.504050] __kasan_kmalloc+0xb7/0xc0 [ 12.504336] __kmalloc_cache_noprof+0x18a/0x420 [ 12.504501] kmalloc_oob_memset_2+0xad/0x330 [ 12.504647] kunit_try_run_case+0x1a6/0x480 [ 12.504797] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.505023] kthread+0x324/0x6e0 [ 12.505227] ret_from_fork+0x41/0x80 [ 12.505386] ret_from_fork_asm+0x1a/0x30 [ 12.505539] [ 12.505636] The buggy address belongs to the object at ffff888101b0ea00 [ 12.505636] which belongs to the cache kmalloc-128 of size 128 [ 12.506253] The buggy address is located 119 bytes inside of [ 12.506253] allocated 120-byte region [ffff888101b0ea00, ffff888101b0ea78) [ 12.506725] [ 12.506800] The buggy address belongs to the physical page: [ 12.507350] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101b0e [ 12.507690] flags: 0x200000000000000(node=0|zone=2) [ 12.507932] page_type: f5(slab) [ 12.508174] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.508508] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.508822] page dumped because: kasan: bad access detected [ 12.509146] [ 12.509245] Memory state around the buggy address: [ 12.509417] ffff888101b0e900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.509702] ffff888101b0e980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.510111] >ffff888101b0ea00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.510400] ^ [ 12.510671] ffff888101b0ea80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.510949] ffff888101b0eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.511570] ==================================================================