Date
July 1, 2025, 12:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.426717] ================================================================== [ 19.427028] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 19.427108] Read of size 1 at addr fff00000c79b4000 by task kunit_try_catch/229 [ 19.427159] [ 19.427258] CPU: 0 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.427471] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.427502] Hardware name: linux,dummy-virt (DT) [ 19.427691] Call trace: [ 19.427734] show_stack+0x20/0x38 (C) [ 19.427849] dump_stack_lvl+0x8c/0xd0 [ 19.428030] print_report+0x118/0x608 [ 19.428142] kasan_report+0xdc/0x128 [ 19.428509] __asan_report_load1_noabort+0x20/0x30 [ 19.428577] mempool_uaf_helper+0x314/0x340 [ 19.428789] mempool_kmalloc_large_uaf+0xc4/0x120 [ 19.428844] kunit_try_run_case+0x170/0x3f0 [ 19.429223] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.429334] kthread+0x328/0x630 [ 19.429381] ret_from_fork+0x10/0x20 [ 19.429893] [ 19.430031] The buggy address belongs to the physical page: [ 19.430125] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1079b4 [ 19.430361] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 19.430434] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 19.430503] page_type: f8(unknown) [ 19.431203] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 19.431262] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 19.431406] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 19.431475] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 19.431533] head: 0bfffe0000000002 ffffc1ffc31e6d01 00000000ffffffff 00000000ffffffff [ 19.431585] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 19.432374] page dumped because: kasan: bad access detected [ 19.432477] [ 19.432587] Memory state around the buggy address: [ 19.432631] fff00000c79b3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.432677] fff00000c79b3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.433396] >fff00000c79b4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.433497] ^ [ 19.433528] fff00000c79b4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.433572] fff00000c79b4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.433637] ================================================================== [ 19.502606] ================================================================== [ 19.502679] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 19.502746] Read of size 1 at addr fff00000c79b4000 by task kunit_try_catch/233 [ 19.502799] [ 19.502837] CPU: 0 UID: 0 PID: 233 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.502923] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.502950] Hardware name: linux,dummy-virt (DT) [ 19.503788] Call trace: [ 19.503824] show_stack+0x20/0x38 (C) [ 19.504087] dump_stack_lvl+0x8c/0xd0 [ 19.504211] print_report+0x118/0x608 [ 19.504616] kasan_report+0xdc/0x128 [ 19.505186] __asan_report_load1_noabort+0x20/0x30 [ 19.505250] mempool_uaf_helper+0x314/0x340 [ 19.505298] mempool_page_alloc_uaf+0xc0/0x118 [ 19.505594] kunit_try_run_case+0x170/0x3f0 [ 19.506078] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.506150] kthread+0x328/0x630 [ 19.506494] ret_from_fork+0x10/0x20 [ 19.506687] [ 19.506753] The buggy address belongs to the physical page: [ 19.507056] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1079b4 [ 19.507278] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.507353] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 19.507429] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 19.507641] page dumped because: kasan: bad access detected [ 19.507839] [ 19.507858] Memory state around the buggy address: [ 19.507894] fff00000c79b3f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.508412] fff00000c79b3f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.508708] >fff00000c79b4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.508755] ^ [ 19.508946] fff00000c79b4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.509282] fff00000c79b4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.509328] ==================================================================
[ 12.975864] ================================================================== [ 12.976812] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 12.977645] Read of size 1 at addr ffff888103990000 by task kunit_try_catch/246 [ 12.977999] [ 12.978125] CPU: 1 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.978170] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.978182] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.978202] Call Trace: [ 12.978216] <TASK> [ 12.978230] dump_stack_lvl+0x73/0xb0 [ 12.978259] print_report+0xd1/0x650 [ 12.978282] ? __virt_addr_valid+0x1db/0x2d0 [ 12.978306] ? mempool_uaf_helper+0x392/0x400 [ 12.978330] ? kasan_addr_to_slab+0x11/0xa0 [ 12.978350] ? mempool_uaf_helper+0x392/0x400 [ 12.978372] kasan_report+0x141/0x180 [ 12.978394] ? mempool_uaf_helper+0x392/0x400 [ 12.978421] __asan_report_load1_noabort+0x18/0x20 [ 12.978445] mempool_uaf_helper+0x392/0x400 [ 12.978467] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 12.978491] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.978512] ? finish_task_switch.isra.0+0x153/0x700 [ 12.978537] mempool_kmalloc_large_uaf+0xef/0x140 [ 12.978560] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 12.978586] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.978629] ? __pfx_mempool_kfree+0x10/0x10 [ 12.978655] ? __pfx_read_tsc+0x10/0x10 [ 12.978690] ? ktime_get_ts64+0x86/0x230 [ 12.978714] kunit_try_run_case+0x1a5/0x480 [ 12.978739] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.978762] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.978787] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.978809] ? __kthread_parkme+0x82/0x180 [ 12.978829] ? preempt_count_sub+0x50/0x80 [ 12.978853] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.978878] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.978900] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.978924] kthread+0x337/0x6f0 [ 12.978943] ? trace_preempt_on+0x20/0xc0 [ 12.978966] ? __pfx_kthread+0x10/0x10 [ 12.978986] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.979006] ? calculate_sigpending+0x7b/0xa0 [ 12.979039] ? __pfx_kthread+0x10/0x10 [ 12.979064] ret_from_fork+0x116/0x1d0 [ 12.979083] ? __pfx_kthread+0x10/0x10 [ 12.979104] ret_from_fork_asm+0x1a/0x30 [ 12.979134] </TASK> [ 12.979160] [ 12.987357] The buggy address belongs to the physical page: [ 12.987613] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103990 [ 12.987980] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.988364] flags: 0x200000000000040(head|node=0|zone=2) [ 12.988805] page_type: f8(unknown) [ 12.988991] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.989238] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.989482] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.989820] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.990434] head: 0200000000000002 ffffea00040e6401 00000000ffffffff 00000000ffffffff [ 12.990686] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.990914] page dumped because: kasan: bad access detected [ 12.991422] [ 12.991521] Memory state around the buggy address: [ 12.991749] ffff88810398ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.992047] ffff88810398ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.992351] >ffff888103990000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.992677] ^ [ 12.992833] ffff888103990080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.993194] ffff888103990100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.993446] ================================================================== [ 13.027650] ================================================================== [ 13.029158] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 13.030285] Read of size 1 at addr ffff888103990000 by task kunit_try_catch/250 [ 13.031109] [ 13.031243] CPU: 1 UID: 0 PID: 250 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.031329] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.031342] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.031364] Call Trace: [ 13.031378] <TASK> [ 13.031394] dump_stack_lvl+0x73/0xb0 [ 13.031424] print_report+0xd1/0x650 [ 13.031447] ? __virt_addr_valid+0x1db/0x2d0 [ 13.031471] ? mempool_uaf_helper+0x392/0x400 [ 13.031493] ? kasan_addr_to_slab+0x11/0xa0 [ 13.031514] ? mempool_uaf_helper+0x392/0x400 [ 13.031536] kasan_report+0x141/0x180 [ 13.031557] ? mempool_uaf_helper+0x392/0x400 [ 13.031584] __asan_report_load1_noabort+0x18/0x20 [ 13.031608] mempool_uaf_helper+0x392/0x400 [ 13.031632] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 13.031655] ? __kasan_check_write+0x18/0x20 [ 13.031675] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.031695] ? finish_task_switch.isra.0+0x153/0x700 [ 13.031721] mempool_page_alloc_uaf+0xed/0x140 [ 13.031744] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 13.031771] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 13.031791] ? __pfx_mempool_free_pages+0x10/0x10 [ 13.031812] ? __pfx_read_tsc+0x10/0x10 [ 13.031833] ? ktime_get_ts64+0x86/0x230 [ 13.031856] kunit_try_run_case+0x1a5/0x480 [ 13.031881] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.031906] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.031930] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.031952] ? __kthread_parkme+0x82/0x180 [ 13.031972] ? preempt_count_sub+0x50/0x80 [ 13.031994] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.032018] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.032055] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.032078] kthread+0x337/0x6f0 [ 13.032097] ? trace_preempt_on+0x20/0xc0 [ 13.032121] ? __pfx_kthread+0x10/0x10 [ 13.032141] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.032161] ? calculate_sigpending+0x7b/0xa0 [ 13.032185] ? __pfx_kthread+0x10/0x10 [ 13.032228] ret_from_fork+0x116/0x1d0 [ 13.032246] ? __pfx_kthread+0x10/0x10 [ 13.032267] ret_from_fork_asm+0x1a/0x30 [ 13.032296] </TASK> [ 13.032308] [ 13.046103] The buggy address belongs to the physical page: [ 13.046739] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103990 [ 13.046992] flags: 0x200000000000000(node=0|zone=2) [ 13.047566] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 13.048325] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 13.048991] page dumped because: kasan: bad access detected [ 13.049633] [ 13.049709] Memory state around the buggy address: [ 13.049860] ffff88810398ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.050111] ffff88810398ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.050850] >ffff888103990000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.051581] ^ [ 13.051984] ffff888103990080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.052760] ffff888103990100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.053531] ==================================================================