Date
July 15, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.561787] ================================================================== [ 17.561982] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 17.562312] Read of size 1 at addr fff00000c596a240 by task kunit_try_catch/232 [ 17.562438] [ 17.562474] CPU: 1 UID: 0 PID: 232 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.563089] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.563142] Hardware name: linux,dummy-virt (DT) [ 17.563217] Call trace: [ 17.563344] show_stack+0x20/0x38 (C) [ 17.563590] dump_stack_lvl+0x8c/0xd0 [ 17.563640] print_report+0x118/0x5d0 [ 17.563718] kasan_report+0xdc/0x128 [ 17.563763] __asan_report_load1_noabort+0x20/0x30 [ 17.563852] mempool_uaf_helper+0x314/0x340 [ 17.564089] mempool_slab_uaf+0xc0/0x118 [ 17.564141] kunit_try_run_case+0x170/0x3f0 [ 17.564197] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.564251] kthread+0x328/0x630 [ 17.564291] ret_from_fork+0x10/0x20 [ 17.564588] [ 17.564606] Allocated by task 232: [ 17.564637] kasan_save_stack+0x3c/0x68 [ 17.564679] kasan_save_track+0x20/0x40 [ 17.564714] kasan_save_alloc_info+0x40/0x58 [ 17.564754] __kasan_mempool_unpoison_object+0xbc/0x180 [ 17.564797] remove_element+0x16c/0x1f8 [ 17.565514] mempool_alloc_preallocated+0x58/0xc0 [ 17.565561] mempool_uaf_helper+0xa4/0x340 [ 17.565944] mempool_slab_uaf+0xc0/0x118 [ 17.566040] kunit_try_run_case+0x170/0x3f0 [ 17.566092] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.566138] kthread+0x328/0x630 [ 17.566465] ret_from_fork+0x10/0x20 [ 17.566511] [ 17.566587] Freed by task 232: [ 17.566617] kasan_save_stack+0x3c/0x68 [ 17.566802] kasan_save_track+0x20/0x40 [ 17.566889] kasan_save_free_info+0x4c/0x78 [ 17.566930] __kasan_mempool_poison_object+0xc0/0x150 [ 17.567021] mempool_free+0x28c/0x328 [ 17.567192] mempool_uaf_helper+0x104/0x340 [ 17.567230] mempool_slab_uaf+0xc0/0x118 [ 17.567424] kunit_try_run_case+0x170/0x3f0 [ 17.567551] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.567602] kthread+0x328/0x630 [ 17.567634] ret_from_fork+0x10/0x20 [ 17.567870] [ 17.567958] The buggy address belongs to the object at fff00000c596a240 [ 17.567958] which belongs to the cache test_cache of size 123 [ 17.568060] The buggy address is located 0 bytes inside of [ 17.568060] freed 123-byte region [fff00000c596a240, fff00000c596a2bb) [ 17.568213] [ 17.568233] The buggy address belongs to the physical page: [ 17.568269] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10596a [ 17.568476] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.568526] page_type: f5(slab) [ 17.568573] raw: 0bfffe0000000000 fff00000c590fb40 dead000000000122 0000000000000000 [ 17.568822] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 17.569009] page dumped because: kasan: bad access detected [ 17.569100] [ 17.569123] Memory state around the buggy address: [ 17.569156] fff00000c596a100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 17.569211] fff00000c596a180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.569254] >fff00000c596a200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 17.569485] ^ [ 17.569530] fff00000c596a280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 17.569654] fff00000c596a300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.569711] ================================================================== [ 17.506849] ================================================================== [ 17.506918] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 17.506990] Read of size 1 at addr fff00000c5962600 by task kunit_try_catch/228 [ 17.507041] [ 17.507092] CPU: 1 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.507217] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.507361] Hardware name: linux,dummy-virt (DT) [ 17.507418] Call trace: [ 17.507469] show_stack+0x20/0x38 (C) [ 17.507533] dump_stack_lvl+0x8c/0xd0 [ 17.507609] print_report+0x118/0x5d0 [ 17.507774] kasan_report+0xdc/0x128 [ 17.507820] __asan_report_load1_noabort+0x20/0x30 [ 17.507873] mempool_uaf_helper+0x314/0x340 [ 17.507918] mempool_kmalloc_uaf+0xc4/0x120 [ 17.507963] kunit_try_run_case+0x170/0x3f0 [ 17.508080] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.508168] kthread+0x328/0x630 [ 17.508242] ret_from_fork+0x10/0x20 [ 17.508307] [ 17.508325] Allocated by task 228: [ 17.508380] kasan_save_stack+0x3c/0x68 [ 17.508422] kasan_save_track+0x20/0x40 [ 17.508464] kasan_save_alloc_info+0x40/0x58 [ 17.508505] __kasan_mempool_unpoison_object+0x11c/0x180 [ 17.508548] remove_element+0x130/0x1f8 [ 17.508739] mempool_alloc_preallocated+0x58/0xc0 [ 17.508792] mempool_uaf_helper+0xa4/0x340 [ 17.508859] mempool_kmalloc_uaf+0xc4/0x120 [ 17.508914] kunit_try_run_case+0x170/0x3f0 [ 17.508953] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.509079] kthread+0x328/0x630 [ 17.509120] ret_from_fork+0x10/0x20 [ 17.509157] [ 17.509209] Freed by task 228: [ 17.509238] kasan_save_stack+0x3c/0x68 [ 17.509279] kasan_save_track+0x20/0x40 [ 17.509341] kasan_save_free_info+0x4c/0x78 [ 17.509380] __kasan_mempool_poison_object+0xc0/0x150 [ 17.509422] mempool_free+0x28c/0x328 [ 17.509456] mempool_uaf_helper+0x104/0x340 [ 17.509624] mempool_kmalloc_uaf+0xc4/0x120 [ 17.509795] kunit_try_run_case+0x170/0x3f0 [ 17.509880] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.509994] kthread+0x328/0x630 [ 17.510112] ret_from_fork+0x10/0x20 [ 17.510256] [ 17.510276] The buggy address belongs to the object at fff00000c5962600 [ 17.510276] which belongs to the cache kmalloc-128 of size 128 [ 17.510376] The buggy address is located 0 bytes inside of [ 17.510376] freed 128-byte region [fff00000c5962600, fff00000c5962680) [ 17.510539] [ 17.510640] The buggy address belongs to the physical page: [ 17.510708] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105962 [ 17.510802] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.510900] page_type: f5(slab) [ 17.511013] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.511115] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.511155] page dumped because: kasan: bad access detected [ 17.511325] [ 17.511445] Memory state around the buggy address: [ 17.511512] fff00000c5962500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.511661] fff00000c5962580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.511750] >fff00000c5962600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.511879] ^ [ 17.511948] fff00000c5962680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.511990] fff00000c5962700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.512246] ==================================================================
[ 14.041937] ================================================================== [ 14.042369] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 14.042694] Read of size 1 at addr ffff888102afcc00 by task kunit_try_catch/244 [ 14.043138] [ 14.043259] CPU: 1 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 14.043304] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.043317] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.043352] Call Trace: [ 14.043364] <TASK> [ 14.043378] dump_stack_lvl+0x73/0xb0 [ 14.043408] print_report+0xd1/0x610 [ 14.043431] ? __virt_addr_valid+0x1db/0x2d0 [ 14.043463] ? mempool_uaf_helper+0x392/0x400 [ 14.043486] ? kasan_complete_mode_report_info+0x64/0x200 [ 14.043511] ? mempool_uaf_helper+0x392/0x400 [ 14.043534] kasan_report+0x141/0x180 [ 14.043557] ? mempool_uaf_helper+0x392/0x400 [ 14.043584] __asan_report_load1_noabort+0x18/0x20 [ 14.043610] mempool_uaf_helper+0x392/0x400 [ 14.043633] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 14.043661] ? finish_task_switch.isra.0+0x153/0x700 [ 14.043689] mempool_kmalloc_uaf+0xef/0x140 [ 14.043712] ? __pfx_mempool_kmalloc_uaf+0x10/0x10 [ 14.043740] ? __pfx_mempool_kmalloc+0x10/0x10 [ 14.043777] ? __pfx_mempool_kfree+0x10/0x10 [ 14.043803] ? __pfx_read_tsc+0x10/0x10 [ 14.043824] ? ktime_get_ts64+0x86/0x230 [ 14.043849] kunit_try_run_case+0x1a5/0x480 [ 14.043875] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.043899] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.043925] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.043949] ? __kthread_parkme+0x82/0x180 [ 14.043971] ? preempt_count_sub+0x50/0x80 [ 14.043994] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.044019] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.044045] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.044071] kthread+0x337/0x6f0 [ 14.044090] ? trace_preempt_on+0x20/0xc0 [ 14.044114] ? __pfx_kthread+0x10/0x10 [ 14.044135] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.044157] ? calculate_sigpending+0x7b/0xa0 [ 14.044182] ? __pfx_kthread+0x10/0x10 [ 14.044204] ret_from_fork+0x116/0x1d0 [ 14.044223] ? __pfx_kthread+0x10/0x10 [ 14.044244] ret_from_fork_asm+0x1a/0x30 [ 14.044276] </TASK> [ 14.044286] [ 14.051509] Allocated by task 244: [ 14.051709] kasan_save_stack+0x45/0x70 [ 14.052125] kasan_save_track+0x18/0x40 [ 14.052318] kasan_save_alloc_info+0x3b/0x50 [ 14.052491] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 14.052667] remove_element+0x11e/0x190 [ 14.052877] mempool_alloc_preallocated+0x4d/0x90 [ 14.053106] mempool_uaf_helper+0x96/0x400 [ 14.053316] mempool_kmalloc_uaf+0xef/0x140 [ 14.053523] kunit_try_run_case+0x1a5/0x480 [ 14.053744] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.053994] kthread+0x337/0x6f0 [ 14.054165] ret_from_fork+0x116/0x1d0 [ 14.054296] ret_from_fork_asm+0x1a/0x30 [ 14.054516] [ 14.054612] Freed by task 244: [ 14.054782] kasan_save_stack+0x45/0x70 [ 14.054955] kasan_save_track+0x18/0x40 [ 14.055147] kasan_save_free_info+0x3f/0x60 [ 14.055303] __kasan_mempool_poison_object+0x131/0x1d0 [ 14.055474] mempool_free+0x2ec/0x380 [ 14.055608] mempool_uaf_helper+0x11a/0x400 [ 14.055767] mempool_kmalloc_uaf+0xef/0x140 [ 14.055980] kunit_try_run_case+0x1a5/0x480 [ 14.056187] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.056463] kthread+0x337/0x6f0 [ 14.056633] ret_from_fork+0x116/0x1d0 [ 14.056830] ret_from_fork_asm+0x1a/0x30 [ 14.057028] [ 14.057122] The buggy address belongs to the object at ffff888102afcc00 [ 14.057122] which belongs to the cache kmalloc-128 of size 128 [ 14.057594] The buggy address is located 0 bytes inside of [ 14.057594] freed 128-byte region [ffff888102afcc00, ffff888102afcc80) [ 14.057995] [ 14.058065] The buggy address belongs to the physical page: [ 14.058284] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102afc [ 14.058878] flags: 0x200000000000000(node=0|zone=2) [ 14.059073] page_type: f5(slab) [ 14.059252] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 14.059607] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 14.059922] page dumped because: kasan: bad access detected [ 14.060114] [ 14.060183] Memory state around the buggy address: [ 14.060406] ffff888102afcb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.060779] ffff888102afcb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.060995] >ffff888102afcc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.061322] ^ [ 14.061488] ffff888102afcc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.061976] ffff888102afcd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.062188] ================================================================== [ 14.086512] ================================================================== [ 14.087017] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 14.087319] Read of size 1 at addr ffff8881038e2240 by task kunit_try_catch/248 [ 14.087633] [ 14.087730] CPU: 1 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 14.087784] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.087796] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.087817] Call Trace: [ 14.087828] <TASK> [ 14.087842] dump_stack_lvl+0x73/0xb0 [ 14.087875] print_report+0xd1/0x610 [ 14.087902] ? __virt_addr_valid+0x1db/0x2d0 [ 14.087927] ? mempool_uaf_helper+0x392/0x400 [ 14.087951] ? kasan_complete_mode_report_info+0x64/0x200 [ 14.087976] ? mempool_uaf_helper+0x392/0x400 [ 14.088000] kasan_report+0x141/0x180 [ 14.088024] ? mempool_uaf_helper+0x392/0x400 [ 14.088052] __asan_report_load1_noabort+0x18/0x20 [ 14.088079] mempool_uaf_helper+0x392/0x400 [ 14.088103] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 14.088126] ? update_load_avg+0x1be/0x21b0 [ 14.088155] ? finish_task_switch.isra.0+0x153/0x700 [ 14.088182] mempool_slab_uaf+0xea/0x140 [ 14.088206] ? __pfx_mempool_slab_uaf+0x10/0x10 [ 14.088231] ? __kasan_check_write+0x18/0x20 [ 14.088255] ? __pfx_mempool_alloc_slab+0x10/0x10 [ 14.088282] ? __pfx_mempool_free_slab+0x10/0x10 [ 14.088309] ? __pfx_read_tsc+0x10/0x10 [ 14.088331] ? ktime_get_ts64+0x86/0x230 [ 14.088353] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 14.088383] kunit_try_run_case+0x1a5/0x480 [ 14.088409] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.088435] ? queued_spin_lock_slowpath+0x116/0xb40 [ 14.088461] ? __kthread_parkme+0x82/0x180 [ 14.088483] ? preempt_count_sub+0x50/0x80 [ 14.088507] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.088532] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.088559] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.088585] kthread+0x337/0x6f0 [ 14.088605] ? trace_preempt_on+0x20/0xc0 [ 14.088628] ? __pfx_kthread+0x10/0x10 [ 14.088650] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.088780] ? calculate_sigpending+0x7b/0xa0 [ 14.088806] ? __pfx_kthread+0x10/0x10 [ 14.088829] ret_from_fork+0x116/0x1d0 [ 14.088848] ? __pfx_kthread+0x10/0x10 [ 14.088870] ret_from_fork_asm+0x1a/0x30 [ 14.088900] </TASK> [ 14.088911] [ 14.097122] Allocated by task 248: [ 14.097330] kasan_save_stack+0x45/0x70 [ 14.097727] kasan_save_track+0x18/0x40 [ 14.097886] kasan_save_alloc_info+0x3b/0x50 [ 14.098040] __kasan_mempool_unpoison_object+0x1bb/0x200 [ 14.098260] remove_element+0x11e/0x190 [ 14.098688] mempool_alloc_preallocated+0x4d/0x90 [ 14.098920] mempool_uaf_helper+0x96/0x400 [ 14.099112] mempool_slab_uaf+0xea/0x140 [ 14.099295] kunit_try_run_case+0x1a5/0x480 [ 14.099559] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.099806] kthread+0x337/0x6f0 [ 14.099967] ret_from_fork+0x116/0x1d0 [ 14.100134] ret_from_fork_asm+0x1a/0x30 [ 14.100322] [ 14.100620] Freed by task 248: [ 14.100782] kasan_save_stack+0x45/0x70 [ 14.100941] kasan_save_track+0x18/0x40 [ 14.101123] kasan_save_free_info+0x3f/0x60 [ 14.101311] __kasan_mempool_poison_object+0x131/0x1d0 [ 14.101485] mempool_free+0x2ec/0x380 [ 14.101619] mempool_uaf_helper+0x11a/0x400 [ 14.101774] mempool_slab_uaf+0xea/0x140 [ 14.101913] kunit_try_run_case+0x1a5/0x480 [ 14.102066] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.102244] kthread+0x337/0x6f0 [ 14.102934] ret_from_fork+0x116/0x1d0 [ 14.103246] ret_from_fork_asm+0x1a/0x30 [ 14.105858] [ 14.105962] The buggy address belongs to the object at ffff8881038e2240 [ 14.105962] which belongs to the cache test_cache of size 123 [ 14.107387] The buggy address is located 0 bytes inside of [ 14.107387] freed 123-byte region [ffff8881038e2240, ffff8881038e22bb) [ 14.107831] [ 14.107908] The buggy address belongs to the physical page: [ 14.108077] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1038e2 [ 14.108312] flags: 0x200000000000000(node=0|zone=2) [ 14.108471] page_type: f5(slab) [ 14.108590] raw: 0200000000000000 ffff8881038d9280 dead000000000122 0000000000000000 [ 14.109654] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 14.109992] page dumped because: kasan: bad access detected [ 14.110170] [ 14.110247] Memory state around the buggy address: [ 14.110558] ffff8881038e2100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 14.110800] ffff8881038e2180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.111011] >ffff8881038e2200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 14.111251] ^ [ 14.111551] ffff8881038e2280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 14.112462] ffff8881038e2300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.112707] ==================================================================