Date
July 6, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.146499] ================================================================== [ 20.146563] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 20.146618] Read of size 1 at addr fff00000c56ed700 by task kunit_try_catch/227 [ 20.146666] [ 20.146712] CPU: 1 UID: 0 PID: 227 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.147009] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.147078] Hardware name: linux,dummy-virt (DT) [ 20.147251] Call trace: [ 20.147376] show_stack+0x20/0x38 (C) [ 20.147528] dump_stack_lvl+0x8c/0xd0 [ 20.147682] print_report+0x118/0x608 [ 20.147746] kasan_report+0xdc/0x128 [ 20.147791] __asan_report_load1_noabort+0x20/0x30 [ 20.147842] mempool_uaf_helper+0x314/0x340 [ 20.147887] mempool_kmalloc_uaf+0xc4/0x120 [ 20.147933] kunit_try_run_case+0x170/0x3f0 [ 20.147980] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.148032] kthread+0x328/0x630 [ 20.148081] ret_from_fork+0x10/0x20 [ 20.148224] [ 20.148243] Allocated by task 227: [ 20.148272] kasan_save_stack+0x3c/0x68 [ 20.148313] kasan_save_track+0x20/0x40 [ 20.148351] kasan_save_alloc_info+0x40/0x58 [ 20.148390] __kasan_mempool_unpoison_object+0x11c/0x180 [ 20.148433] remove_element+0x130/0x1f8 [ 20.148470] mempool_alloc_preallocated+0x58/0xc0 [ 20.148509] mempool_uaf_helper+0xa4/0x340 [ 20.148545] mempool_kmalloc_uaf+0xc4/0x120 [ 20.148583] kunit_try_run_case+0x170/0x3f0 [ 20.148620] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.148663] kthread+0x328/0x630 [ 20.148694] ret_from_fork+0x10/0x20 [ 20.148731] [ 20.148749] Freed by task 227: [ 20.148813] kasan_save_stack+0x3c/0x68 [ 20.148994] kasan_save_track+0x20/0x40 [ 20.149202] kasan_save_free_info+0x4c/0x78 [ 20.149242] __kasan_mempool_poison_object+0xc0/0x150 [ 20.149283] mempool_free+0x28c/0x328 [ 20.149319] mempool_uaf_helper+0x104/0x340 [ 20.149354] mempool_kmalloc_uaf+0xc4/0x120 [ 20.149391] kunit_try_run_case+0x170/0x3f0 [ 20.149428] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.149734] kthread+0x328/0x630 [ 20.149924] ret_from_fork+0x10/0x20 [ 20.149959] [ 20.149978] The buggy address belongs to the object at fff00000c56ed700 [ 20.149978] which belongs to the cache kmalloc-128 of size 128 [ 20.150041] The buggy address is located 0 bytes inside of [ 20.150041] freed 128-byte region [fff00000c56ed700, fff00000c56ed780) [ 20.150137] [ 20.150157] The buggy address belongs to the physical page: [ 20.150231] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1056ed [ 20.150544] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.150620] page_type: f5(slab) [ 20.150661] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 20.150710] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 20.150750] page dumped because: kasan: bad access detected [ 20.150781] [ 20.150798] Memory state around the buggy address: [ 20.150846] fff00000c56ed600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.150922] fff00000c56ed680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.150964] >fff00000c56ed700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.151002] ^ [ 20.151028] fff00000c56ed780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.151069] fff00000c56ed800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.151107] ================================================================== [ 20.170871] ================================================================== [ 20.170932] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 20.171005] Read of size 1 at addr fff00000c5706240 by task kunit_try_catch/231 [ 20.171217] [ 20.171270] CPU: 1 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.171623] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.171649] Hardware name: linux,dummy-virt (DT) [ 20.171777] Call trace: [ 20.171800] show_stack+0x20/0x38 (C) [ 20.171847] dump_stack_lvl+0x8c/0xd0 [ 20.171891] print_report+0x118/0x608 [ 20.171937] kasan_report+0xdc/0x128 [ 20.171980] __asan_report_load1_noabort+0x20/0x30 [ 20.172039] mempool_uaf_helper+0x314/0x340 [ 20.172219] mempool_slab_uaf+0xc0/0x118 [ 20.172264] kunit_try_run_case+0x170/0x3f0 [ 20.172309] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.172361] kthread+0x328/0x630 [ 20.172402] ret_from_fork+0x10/0x20 [ 20.172449] [ 20.172466] Allocated by task 231: [ 20.172493] kasan_save_stack+0x3c/0x68 [ 20.172533] kasan_save_track+0x20/0x40 [ 20.172570] kasan_save_alloc_info+0x40/0x58 [ 20.172610] __kasan_mempool_unpoison_object+0xbc/0x180 [ 20.172653] remove_element+0x16c/0x1f8 [ 20.172689] mempool_alloc_preallocated+0x58/0xc0 [ 20.172728] mempool_uaf_helper+0xa4/0x340 [ 20.172765] mempool_slab_uaf+0xc0/0x118 [ 20.172804] kunit_try_run_case+0x170/0x3f0 [ 20.172842] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.172915] kthread+0x328/0x630 [ 20.173098] ret_from_fork+0x10/0x20 [ 20.173135] [ 20.173153] Freed by task 231: [ 20.173492] kasan_save_stack+0x3c/0x68 [ 20.173621] kasan_save_track+0x20/0x40 [ 20.173678] kasan_save_free_info+0x4c/0x78 [ 20.173728] __kasan_mempool_poison_object+0xc0/0x150 [ 20.173837] mempool_free+0x28c/0x328 [ 20.173873] mempool_uaf_helper+0x104/0x340 [ 20.173910] mempool_slab_uaf+0xc0/0x118 [ 20.173947] kunit_try_run_case+0x170/0x3f0 [ 20.173984] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.174030] kthread+0x328/0x630 [ 20.174064] ret_from_fork+0x10/0x20 [ 20.174101] [ 20.174119] The buggy address belongs to the object at fff00000c5706240 [ 20.174119] which belongs to the cache test_cache of size 123 [ 20.174178] The buggy address is located 0 bytes inside of [ 20.174178] freed 123-byte region [fff00000c5706240, fff00000c57062bb) [ 20.174269] [ 20.174290] The buggy address belongs to the physical page: [ 20.174319] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105706 [ 20.174370] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.174416] page_type: f5(slab) [ 20.174456] raw: 0bfffe0000000000 fff00000c56e6140 dead000000000122 0000000000000000 [ 20.174504] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 20.174558] page dumped because: kasan: bad access detected [ 20.174675] [ 20.174722] Memory state around the buggy address: [ 20.174773] fff00000c5706100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 20.174964] fff00000c5706180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.175006] >fff00000c5706200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 20.175345] ^ [ 20.175385] fff00000c5706280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 20.175476] fff00000c5706300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.175542] ==================================================================
[ 13.190335] ================================================================== [ 13.190929] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 13.191571] Read of size 1 at addr ffff888103a18240 by task kunit_try_catch/248 [ 13.191886] [ 13.192023] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.192072] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.192085] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.192107] Call Trace: [ 13.192121] <TASK> [ 13.192140] dump_stack_lvl+0x73/0xb0 [ 13.192171] print_report+0xd1/0x650 [ 13.192196] ? __virt_addr_valid+0x1db/0x2d0 [ 13.192222] ? mempool_uaf_helper+0x392/0x400 [ 13.192244] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.192279] ? mempool_uaf_helper+0x392/0x400 [ 13.192301] kasan_report+0x141/0x180 [ 13.192324] ? mempool_uaf_helper+0x392/0x400 [ 13.192362] __asan_report_load1_noabort+0x18/0x20 [ 13.192387] mempool_uaf_helper+0x392/0x400 [ 13.192409] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 13.192434] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.192458] ? finish_task_switch.isra.0+0x153/0x700 [ 13.192483] mempool_slab_uaf+0xea/0x140 [ 13.192515] ? __pfx_mempool_slab_uaf+0x10/0x10 [ 13.192541] ? __pfx_mempool_alloc_slab+0x10/0x10 [ 13.192563] ? __pfx_mempool_free_slab+0x10/0x10 [ 13.192631] ? __pfx_read_tsc+0x10/0x10 [ 13.192655] ? ktime_get_ts64+0x86/0x230 [ 13.192681] kunit_try_run_case+0x1a5/0x480 [ 13.192708] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.192731] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.192756] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.192779] ? __kthread_parkme+0x82/0x180 [ 13.192800] ? preempt_count_sub+0x50/0x80 [ 13.192824] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.192848] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.192871] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.192894] kthread+0x337/0x6f0 [ 13.192914] ? trace_preempt_on+0x20/0xc0 [ 13.192948] ? __pfx_kthread+0x10/0x10 [ 13.192970] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.192991] ? calculate_sigpending+0x7b/0xa0 [ 13.193016] ? __pfx_kthread+0x10/0x10 [ 13.193038] ret_from_fork+0x116/0x1d0 [ 13.193057] ? __pfx_kthread+0x10/0x10 [ 13.193077] ret_from_fork_asm+0x1a/0x30 [ 13.193108] </TASK> [ 13.193121] [ 13.202097] Allocated by task 248: [ 13.202342] kasan_save_stack+0x45/0x70 [ 13.202536] kasan_save_track+0x18/0x40 [ 13.202781] kasan_save_alloc_info+0x3b/0x50 [ 13.202942] __kasan_mempool_unpoison_object+0x1bb/0x200 [ 13.203133] remove_element+0x11e/0x190 [ 13.203404] mempool_alloc_preallocated+0x4d/0x90 [ 13.203661] mempool_uaf_helper+0x96/0x400 [ 13.203906] mempool_slab_uaf+0xea/0x140 [ 13.204162] kunit_try_run_case+0x1a5/0x480 [ 13.204345] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.204749] kthread+0x337/0x6f0 [ 13.204996] ret_from_fork+0x116/0x1d0 [ 13.205183] ret_from_fork_asm+0x1a/0x30 [ 13.205390] [ 13.205465] Freed by task 248: [ 13.205578] kasan_save_stack+0x45/0x70 [ 13.205716] kasan_save_track+0x18/0x40 [ 13.205852] kasan_save_free_info+0x3f/0x60 [ 13.206074] __kasan_mempool_poison_object+0x131/0x1d0 [ 13.206314] mempool_free+0x2ec/0x380 [ 13.206589] mempool_uaf_helper+0x11a/0x400 [ 13.206885] mempool_slab_uaf+0xea/0x140 [ 13.207048] kunit_try_run_case+0x1a5/0x480 [ 13.207263] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.207457] kthread+0x337/0x6f0 [ 13.207705] ret_from_fork+0x116/0x1d0 [ 13.207906] ret_from_fork_asm+0x1a/0x30 [ 13.208055] [ 13.208128] The buggy address belongs to the object at ffff888103a18240 [ 13.208128] which belongs to the cache test_cache of size 123 [ 13.208595] The buggy address is located 0 bytes inside of [ 13.208595] freed 123-byte region [ffff888103a18240, ffff888103a182bb) [ 13.209379] [ 13.209460] The buggy address belongs to the physical page: [ 13.209635] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a18 [ 13.209879] flags: 0x200000000000000(node=0|zone=2) [ 13.210324] page_type: f5(slab) [ 13.210533] raw: 0200000000000000 ffff888101dc2a00 dead000000000122 0000000000000000 [ 13.211232] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 13.211680] page dumped because: kasan: bad access detected [ 13.212076] [ 13.212174] Memory state around the buggy address: [ 13.212363] ffff888103a18100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 13.212761] ffff888103a18180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.213272] >ffff888103a18200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 13.213607] ^ [ 13.213869] ffff888103a18280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 13.214177] ffff888103a18300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.214497] ================================================================== [ 13.124595] ================================================================== [ 13.125816] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 13.126185] Read of size 1 at addr ffff888102794b00 by task kunit_try_catch/244 [ 13.127403] [ 13.127697] CPU: 1 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.127865] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.127882] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.127907] Call Trace: [ 13.127923] <TASK> [ 13.127955] dump_stack_lvl+0x73/0xb0 [ 13.127992] print_report+0xd1/0x650 [ 13.128016] ? __virt_addr_valid+0x1db/0x2d0 [ 13.128042] ? mempool_uaf_helper+0x392/0x400 [ 13.128104] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.128130] ? mempool_uaf_helper+0x392/0x400 [ 13.128151] kasan_report+0x141/0x180 [ 13.128174] ? mempool_uaf_helper+0x392/0x400 [ 13.128200] __asan_report_load1_noabort+0x18/0x20 [ 13.128225] mempool_uaf_helper+0x392/0x400 [ 13.128279] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 13.128304] ? __kasan_check_write+0x18/0x20 [ 13.128324] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.128348] ? finish_task_switch.isra.0+0x153/0x700 [ 13.128374] mempool_kmalloc_uaf+0xef/0x140 [ 13.128397] ? __pfx_mempool_kmalloc_uaf+0x10/0x10 [ 13.128422] ? __pfx_mempool_kmalloc+0x10/0x10 [ 13.128448] ? __pfx_mempool_kfree+0x10/0x10 [ 13.128474] ? __pfx_read_tsc+0x10/0x10 [ 13.128497] ? ktime_get_ts64+0x86/0x230 [ 13.128523] kunit_try_run_case+0x1a5/0x480 [ 13.128549] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.128571] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.128597] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.128620] ? __kthread_parkme+0x82/0x180 [ 13.128642] ? preempt_count_sub+0x50/0x80 [ 13.128665] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.128688] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.128711] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.128735] kthread+0x337/0x6f0 [ 13.128755] ? trace_preempt_on+0x20/0xc0 [ 13.128779] ? __pfx_kthread+0x10/0x10 [ 13.128800] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.128822] ? calculate_sigpending+0x7b/0xa0 [ 13.128847] ? __pfx_kthread+0x10/0x10 [ 13.128869] ret_from_fork+0x116/0x1d0 [ 13.128887] ? __pfx_kthread+0x10/0x10 [ 13.128907] ret_from_fork_asm+0x1a/0x30 [ 13.128951] </TASK> [ 13.128964] [ 13.145162] Allocated by task 244: [ 13.145403] kasan_save_stack+0x45/0x70 [ 13.145861] kasan_save_track+0x18/0x40 [ 13.146159] kasan_save_alloc_info+0x3b/0x50 [ 13.146315] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 13.146635] remove_element+0x11e/0x190 [ 13.147028] mempool_alloc_preallocated+0x4d/0x90 [ 13.147582] mempool_uaf_helper+0x96/0x400 [ 13.147987] mempool_kmalloc_uaf+0xef/0x140 [ 13.148289] kunit_try_run_case+0x1a5/0x480 [ 13.148440] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.148624] kthread+0x337/0x6f0 [ 13.148749] ret_from_fork+0x116/0x1d0 [ 13.148884] ret_from_fork_asm+0x1a/0x30 [ 13.149387] [ 13.149625] Freed by task 244: [ 13.150069] kasan_save_stack+0x45/0x70 [ 13.150570] kasan_save_track+0x18/0x40 [ 13.151022] kasan_save_free_info+0x3f/0x60 [ 13.151466] __kasan_mempool_poison_object+0x131/0x1d0 [ 13.152024] mempool_free+0x2ec/0x380 [ 13.152472] mempool_uaf_helper+0x11a/0x400 [ 13.153004] mempool_kmalloc_uaf+0xef/0x140 [ 13.153442] kunit_try_run_case+0x1a5/0x480 [ 13.153640] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.154245] kthread+0x337/0x6f0 [ 13.154448] ret_from_fork+0x116/0x1d0 [ 13.154850] ret_from_fork_asm+0x1a/0x30 [ 13.155251] [ 13.155334] The buggy address belongs to the object at ffff888102794b00 [ 13.155334] which belongs to the cache kmalloc-128 of size 128 [ 13.156185] The buggy address is located 0 bytes inside of [ 13.156185] freed 128-byte region [ffff888102794b00, ffff888102794b80) [ 13.157542] [ 13.157686] The buggy address belongs to the physical page: [ 13.157864] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102794 [ 13.158283] flags: 0x200000000000000(node=0|zone=2) [ 13.158899] page_type: f5(slab) [ 13.159305] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.160129] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.160697] page dumped because: kasan: bad access detected [ 13.160884] [ 13.160980] Memory state around the buggy address: [ 13.161179] ffff888102794a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.161543] ffff888102794a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.161804] >ffff888102794b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.162221] ^ [ 13.162366] ffff888102794b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.162711] ffff888102794c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.163055] ==================================================================