Date
July 1, 2025, 12:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.080490] ================================================================== [ 17.080582] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 17.080803] Read of size 1 at addr fff00000c5f8f000 by task kunit_try_catch/140 [ 17.080977] [ 17.081018] CPU: 1 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 17.081103] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.081130] Hardware name: linux,dummy-virt (DT) [ 17.081164] Call trace: [ 17.081187] show_stack+0x20/0x38 (C) [ 17.081238] dump_stack_lvl+0x8c/0xd0 [ 17.081289] print_report+0x118/0x608 [ 17.081335] kasan_report+0xdc/0x128 [ 17.081387] __asan_report_load1_noabort+0x20/0x30 [ 17.081794] kmalloc_node_oob_right+0x2f4/0x330 [ 17.082231] kunit_try_run_case+0x170/0x3f0 [ 17.082292] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.082812] kthread+0x328/0x630 [ 17.082870] ret_from_fork+0x10/0x20 [ 17.083325] [ 17.083357] Allocated by task 140: [ 17.083440] kasan_save_stack+0x3c/0x68 [ 17.083569] kasan_save_track+0x20/0x40 [ 17.083605] kasan_save_alloc_info+0x40/0x58 [ 17.083644] __kasan_kmalloc+0xd4/0xd8 [ 17.083680] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 17.083889] kmalloc_node_oob_right+0xbc/0x330 [ 17.083996] kunit_try_run_case+0x170/0x3f0 [ 17.084035] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.084078] kthread+0x328/0x630 [ 17.084109] ret_from_fork+0x10/0x20 [ 17.084154] [ 17.084190] The buggy address belongs to the object at fff00000c5f8e000 [ 17.084190] which belongs to the cache kmalloc-4k of size 4096 [ 17.084512] The buggy address is located 0 bytes to the right of [ 17.084512] allocated 4096-byte region [fff00000c5f8e000, fff00000c5f8f000) [ 17.084821] [ 17.084843] The buggy address belongs to the physical page: [ 17.084989] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105f88 [ 17.085313] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.085612] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.085751] page_type: f5(slab) [ 17.085824] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 17.085884] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 17.085964] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 17.086158] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 17.086209] head: 0bfffe0000000003 ffffc1ffc317e201 00000000ffffffff 00000000ffffffff [ 17.086324] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 17.086420] page dumped because: kasan: bad access detected [ 17.086467] [ 17.086486] Memory state around the buggy address: [ 17.086520] fff00000c5f8ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.086594] fff00000c5f8ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.086660] >fff00000c5f8f000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.086796] ^ [ 17.086909] fff00000c5f8f080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.087112] fff00000c5f8f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.087209] ==================================================================
[ 10.840223] ================================================================== [ 10.840610] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 10.840858] Read of size 1 at addr ffff888102977000 by task kunit_try_catch/157 [ 10.841206] [ 10.841470] CPU: 1 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 10.841514] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.841526] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.841546] Call Trace: [ 10.841558] <TASK> [ 10.841574] dump_stack_lvl+0x73/0xb0 [ 10.841602] print_report+0xd1/0x650 [ 10.841623] ? __virt_addr_valid+0x1db/0x2d0 [ 10.841646] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.841667] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.841688] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.841710] kasan_report+0x141/0x180 [ 10.841730] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.841758] __asan_report_load1_noabort+0x18/0x20 [ 10.841780] kmalloc_node_oob_right+0x369/0x3c0 [ 10.841803] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 10.841826] ? __schedule+0x10cc/0x2b60 [ 10.841846] ? __pfx_read_tsc+0x10/0x10 [ 10.841867] ? ktime_get_ts64+0x86/0x230 [ 10.841890] kunit_try_run_case+0x1a5/0x480 [ 10.841914] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.841935] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.841957] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.841978] ? __kthread_parkme+0x82/0x180 [ 10.841997] ? preempt_count_sub+0x50/0x80 [ 10.842020] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.842054] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.842076] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.842097] kthread+0x337/0x6f0 [ 10.842114] ? trace_preempt_on+0x20/0xc0 [ 10.842137] ? __pfx_kthread+0x10/0x10 [ 10.842156] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.842189] ? calculate_sigpending+0x7b/0xa0 [ 10.842212] ? __pfx_kthread+0x10/0x10 [ 10.842232] ret_from_fork+0x116/0x1d0 [ 10.842249] ? __pfx_kthread+0x10/0x10 [ 10.842268] ret_from_fork_asm+0x1a/0x30 [ 10.842297] </TASK> [ 10.842307] [ 10.856019] Allocated by task 157: [ 10.856248] kasan_save_stack+0x45/0x70 [ 10.856619] kasan_save_track+0x18/0x40 [ 10.857068] kasan_save_alloc_info+0x3b/0x50 [ 10.857465] __kasan_kmalloc+0xb7/0xc0 [ 10.857819] __kmalloc_cache_node_noprof+0x188/0x420 [ 10.858317] kmalloc_node_oob_right+0xab/0x3c0 [ 10.858734] kunit_try_run_case+0x1a5/0x480 [ 10.858889] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.859075] kthread+0x337/0x6f0 [ 10.859226] ret_from_fork+0x116/0x1d0 [ 10.859373] ret_from_fork_asm+0x1a/0x30 [ 10.859652] [ 10.859806] The buggy address belongs to the object at ffff888102976000 [ 10.859806] which belongs to the cache kmalloc-4k of size 4096 [ 10.860989] The buggy address is located 0 bytes to the right of [ 10.860989] allocated 4096-byte region [ffff888102976000, ffff888102977000) [ 10.861800] [ 10.861955] The buggy address belongs to the physical page: [ 10.862542] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102970 [ 10.862968] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.863634] flags: 0x200000000000040(head|node=0|zone=2) [ 10.864391] page_type: f5(slab) [ 10.864703] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.865534] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.866337] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.866646] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.866877] head: 0200000000000003 ffffea00040a5c01 00000000ffffffff 00000000ffffffff [ 10.867136] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 10.867623] page dumped because: kasan: bad access detected [ 10.868207] [ 10.868281] Memory state around the buggy address: [ 10.868703] ffff888102976f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.868967] ffff888102976f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.869349] >ffff888102977000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.869756] ^ [ 10.869916] ffff888102977080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.870249] ffff888102977100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.870539] ==================================================================