Date
June 17, 2025, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.208822] ================================================================== [ 19.208886] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 19.208963] Read of size 1 at addr fff00000c52113d8 by task kunit_try_catch/266 [ 19.209021] [ 19.209060] CPU: 1 UID: 0 PID: 266 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT [ 19.209153] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.209183] Hardware name: linux,dummy-virt (DT) [ 19.209229] Call trace: [ 19.209253] show_stack+0x20/0x38 (C) [ 19.209332] dump_stack_lvl+0x8c/0xd0 [ 19.209392] print_report+0x118/0x608 [ 19.209480] kasan_report+0xdc/0x128 [ 19.209529] __asan_report_load1_noabort+0x20/0x30 [ 19.209588] memcmp+0x198/0x1d8 [ 19.209642] kasan_memcmp+0x16c/0x300 [ 19.209856] kunit_try_run_case+0x170/0x3f0 [ 19.209945] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.210180] kthread+0x328/0x630 [ 19.210329] ret_from_fork+0x10/0x20 [ 19.210378] [ 19.210404] Allocated by task 266: [ 19.210526] kasan_save_stack+0x3c/0x68 [ 19.210594] kasan_save_track+0x20/0x40 [ 19.210722] kasan_save_alloc_info+0x40/0x58 [ 19.210800] __kasan_kmalloc+0xd4/0xd8 [ 19.210839] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.210884] kasan_memcmp+0xbc/0x300 [ 19.210921] kunit_try_run_case+0x170/0x3f0 [ 19.211425] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.211708] kthread+0x328/0x630 [ 19.211744] ret_from_fork+0x10/0x20 [ 19.211898] [ 19.211972] The buggy address belongs to the object at fff00000c52113c0 [ 19.211972] which belongs to the cache kmalloc-32 of size 32 [ 19.212288] The buggy address is located 0 bytes to the right of [ 19.212288] allocated 24-byte region [fff00000c52113c0, fff00000c52113d8) [ 19.212356] [ 19.212382] The buggy address belongs to the physical page: [ 19.212414] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105211 [ 19.212742] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.212909] page_type: f5(slab) [ 19.213060] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 19.213170] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 19.213221] page dumped because: kasan: bad access detected [ 19.213343] [ 19.213365] Memory state around the buggy address: [ 19.213398] fff00000c5211280: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.213507] fff00000c5211300: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc [ 19.213555] >fff00000c5211380: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.213602] ^ [ 19.213700] fff00000c5211400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.213907] fff00000c5211480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.214291] ==================================================================
[ 20.748400] ================================================================== [ 20.749136] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 20.749598] Read of size 1 at addr ffff88810383f5d8 by task kunit_try_catch/284 [ 20.750307] [ 20.750723] CPU: 1 UID: 0 PID: 284 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT(voluntary) [ 20.750872] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.750915] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 20.750975] Call Trace: [ 20.751013] <TASK> [ 20.751059] dump_stack_lvl+0x73/0xb0 [ 20.751138] print_report+0xd1/0x650 [ 20.751212] ? __virt_addr_valid+0x1db/0x2d0 [ 20.751285] ? memcmp+0x1b4/0x1d0 [ 20.751351] ? kasan_complete_mode_report_info+0x2a/0x200 [ 20.751421] ? memcmp+0x1b4/0x1d0 [ 20.751492] kasan_report+0x141/0x180 [ 20.751580] ? memcmp+0x1b4/0x1d0 [ 20.751658] __asan_report_load1_noabort+0x18/0x20 [ 20.751739] memcmp+0x1b4/0x1d0 [ 20.751811] kasan_memcmp+0x18f/0x390 [ 20.751905] ? trace_hardirqs_on+0x37/0xe0 [ 20.751982] ? __pfx_kasan_memcmp+0x10/0x10 [ 20.752047] ? finish_task_switch.isra.0+0x153/0x700 [ 20.752096] ? __switch_to+0x47/0xf50 [ 20.752139] ? __pfx_read_tsc+0x10/0x10 [ 20.752171] ? ktime_get_ts64+0x86/0x230 [ 20.752207] kunit_try_run_case+0x1a5/0x480 [ 20.752305] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.752375] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 20.752410] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 20.752448] ? __kthread_parkme+0x82/0x180 [ 20.752476] ? preempt_count_sub+0x50/0x80 [ 20.752509] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.752543] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 20.752576] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 20.752608] kthread+0x337/0x6f0 [ 20.752636] ? trace_preempt_on+0x20/0xc0 [ 20.752668] ? __pfx_kthread+0x10/0x10 [ 20.752695] ? _raw_spin_unlock_irq+0x47/0x80 [ 20.752729] ? calculate_sigpending+0x7b/0xa0 [ 20.752762] ? __pfx_kthread+0x10/0x10 [ 20.752791] ret_from_fork+0x116/0x1d0 [ 20.752817] ? __pfx_kthread+0x10/0x10 [ 20.752877] ret_from_fork_asm+0x1a/0x30 [ 20.752920] </TASK> [ 20.752937] [ 20.767824] Allocated by task 284: [ 20.768143] kasan_save_stack+0x45/0x70 [ 20.768749] kasan_save_track+0x18/0x40 [ 20.769336] kasan_save_alloc_info+0x3b/0x50 [ 20.769788] __kasan_kmalloc+0xb7/0xc0 [ 20.770183] __kmalloc_cache_noprof+0x189/0x420 [ 20.770868] kasan_memcmp+0xb7/0x390 [ 20.771211] kunit_try_run_case+0x1a5/0x480 [ 20.771753] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 20.772422] kthread+0x337/0x6f0 [ 20.772797] ret_from_fork+0x116/0x1d0 [ 20.773249] ret_from_fork_asm+0x1a/0x30 [ 20.773646] [ 20.773856] The buggy address belongs to the object at ffff88810383f5c0 [ 20.773856] which belongs to the cache kmalloc-32 of size 32 [ 20.774977] The buggy address is located 0 bytes to the right of [ 20.774977] allocated 24-byte region [ffff88810383f5c0, ffff88810383f5d8) [ 20.776165] [ 20.776546] The buggy address belongs to the physical page: [ 20.777053] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10383f [ 20.777911] flags: 0x200000000000000(node=0|zone=2) [ 20.778305] page_type: f5(slab) [ 20.778703] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 20.779512] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 20.780202] page dumped because: kasan: bad access detected [ 20.780890] [ 20.781110] Memory state around the buggy address: [ 20.781771] ffff88810383f480: fa fb fb fb fc fc fc fc 00 00 07 fc fc fc fc fc [ 20.782544] ffff88810383f500: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 20.783187] >ffff88810383f580: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 20.783916] ^ [ 20.784647] ffff88810383f600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.785232] ffff88810383f680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.785988] ==================================================================