Date
July 8, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.033862] ================================================================== [ 19.033943] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 19.033994] Read of size 1 at addr fff00000c641d000 by task kunit_try_catch/140 [ 19.034061] [ 19.034092] CPU: 1 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.034356] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.034390] Hardware name: linux,dummy-virt (DT) [ 19.034670] Call trace: [ 19.034741] show_stack+0x20/0x38 (C) [ 19.034832] dump_stack_lvl+0x8c/0xd0 [ 19.034883] print_report+0x118/0x608 [ 19.034934] kasan_report+0xdc/0x128 [ 19.034986] __asan_report_load1_noabort+0x20/0x30 [ 19.035112] kmalloc_node_oob_right+0x2f4/0x330 [ 19.035174] kunit_try_run_case+0x170/0x3f0 [ 19.035443] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.035557] kthread+0x328/0x630 [ 19.035602] ret_from_fork+0x10/0x20 [ 19.035703] [ 19.035721] Allocated by task 140: [ 19.035749] kasan_save_stack+0x3c/0x68 [ 19.035804] kasan_save_track+0x20/0x40 [ 19.035841] kasan_save_alloc_info+0x40/0x58 [ 19.036181] __kasan_kmalloc+0xd4/0xd8 [ 19.036287] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 19.036412] kmalloc_node_oob_right+0xbc/0x330 [ 19.036652] kunit_try_run_case+0x170/0x3f0 [ 19.037004] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.037105] kthread+0x328/0x630 [ 19.037212] ret_from_fork+0x10/0x20 [ 19.037304] [ 19.037475] The buggy address belongs to the object at fff00000c641c000 [ 19.037475] which belongs to the cache kmalloc-4k of size 4096 [ 19.037678] The buggy address is located 0 bytes to the right of [ 19.037678] allocated 4096-byte region [fff00000c641c000, fff00000c641d000) [ 19.037819] [ 19.038234] The buggy address belongs to the physical page: [ 19.038342] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106418 [ 19.038622] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 19.038686] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 19.038772] page_type: f5(slab) [ 19.038810] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 19.038876] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 19.038953] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 19.039002] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 19.039060] head: 0bfffe0000000003 ffffc1ffc3190601 00000000ffffffff 00000000ffffffff [ 19.039116] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 19.039596] page dumped because: kasan: bad access detected [ 19.039656] [ 19.039784] Memory state around the buggy address: [ 19.039820] fff00000c641cf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.039882] fff00000c641cf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.040226] >fff00000c641d000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.040292] ^ [ 19.040639] fff00000c641d080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.040820] fff00000c641d100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.041026] ==================================================================
[ 11.865410] ================================================================== [ 11.866070] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 11.866476] Read of size 1 at addr ffff888102bfb000 by task kunit_try_catch/158 [ 11.866800] [ 11.866930] CPU: 1 UID: 0 PID: 158 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 11.866975] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.866986] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.867007] Call Trace: [ 11.867020] <TASK> [ 11.867036] dump_stack_lvl+0x73/0xb0 [ 11.867066] print_report+0xd1/0x650 [ 11.867088] ? __virt_addr_valid+0x1db/0x2d0 [ 11.867111] ? kmalloc_node_oob_right+0x369/0x3c0 [ 11.867134] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.867157] ? kmalloc_node_oob_right+0x369/0x3c0 [ 11.867180] kasan_report+0x141/0x180 [ 11.867202] ? kmalloc_node_oob_right+0x369/0x3c0 [ 11.867230] __asan_report_load1_noabort+0x18/0x20 [ 11.867255] kmalloc_node_oob_right+0x369/0x3c0 [ 11.867279] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 11.867303] ? __schedule+0x10cc/0x2b60 [ 11.867325] ? __pfx_read_tsc+0x10/0x10 [ 11.867345] ? ktime_get_ts64+0x86/0x230 [ 11.867371] kunit_try_run_case+0x1a5/0x480 [ 11.867397] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.867420] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.867444] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.867467] ? __kthread_parkme+0x82/0x180 [ 11.867487] ? preempt_count_sub+0x50/0x80 [ 11.867525] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.867550] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.867575] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.867611] kthread+0x337/0x6f0 [ 11.867630] ? trace_preempt_on+0x20/0xc0 [ 11.867653] ? __pfx_kthread+0x10/0x10 [ 11.867673] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.867694] ? calculate_sigpending+0x7b/0xa0 [ 11.867717] ? __pfx_kthread+0x10/0x10 [ 11.867738] ret_from_fork+0x116/0x1d0 [ 11.867756] ? __pfx_kthread+0x10/0x10 [ 11.867775] ret_from_fork_asm+0x1a/0x30 [ 11.867806] </TASK> [ 11.867817] [ 11.875022] Allocated by task 158: [ 11.875209] kasan_save_stack+0x45/0x70 [ 11.875409] kasan_save_track+0x18/0x40 [ 11.875724] kasan_save_alloc_info+0x3b/0x50 [ 11.875964] __kasan_kmalloc+0xb7/0xc0 [ 11.876126] __kmalloc_cache_node_noprof+0x188/0x420 [ 11.876351] kmalloc_node_oob_right+0xab/0x3c0 [ 11.876571] kunit_try_run_case+0x1a5/0x480 [ 11.876765] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.876987] kthread+0x337/0x6f0 [ 11.877105] ret_from_fork+0x116/0x1d0 [ 11.877280] ret_from_fork_asm+0x1a/0x30 [ 11.877484] [ 11.877575] The buggy address belongs to the object at ffff888102bfa000 [ 11.877575] which belongs to the cache kmalloc-4k of size 4096 [ 11.878176] The buggy address is located 0 bytes to the right of [ 11.878176] allocated 4096-byte region [ffff888102bfa000, ffff888102bfb000) [ 11.878539] [ 11.878617] The buggy address belongs to the physical page: [ 11.878889] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102bf8 [ 11.879612] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.880034] flags: 0x200000000000040(head|node=0|zone=2) [ 11.880390] page_type: f5(slab) [ 11.880627] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 11.880949] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 11.881226] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 11.881464] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 11.881935] head: 0200000000000003 ffffea00040afe01 00000000ffffffff 00000000ffffffff [ 11.882453] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 11.882810] page dumped because: kasan: bad access detected [ 11.883070] [ 11.883166] Memory state around the buggy address: [ 11.883356] ffff888102bfaf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.883711] ffff888102bfaf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.884104] >ffff888102bfb000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.884373] ^ [ 11.884529] ffff888102bfb080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.884776] ffff888102bfb100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.885317] ==================================================================