Date
Nov. 22, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 35.443185] ================================================================== [ 35.444418] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x17c/0x2f8 [ 35.445365] Read of size 1 at addr fff00000c408c780 by task kunit_try_catch/204 [ 35.446959] [ 35.447487] CPU: 0 UID: 0 PID: 204 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 35.449253] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.450018] Hardware name: linux,dummy-virt (DT) [ 35.450941] Call trace: [ 35.451551] show_stack+0x20/0x38 (C) [ 35.452181] dump_stack_lvl+0x8c/0xd0 [ 35.453107] print_report+0x118/0x5e0 [ 35.453805] kasan_report+0xc8/0x118 [ 35.454409] __kasan_check_byte+0x54/0x70 [ 35.455244] kmem_cache_destroy+0x34/0x218 [ 35.455881] kmem_cache_double_destroy+0x17c/0x2f8 [ 35.456757] kunit_try_run_case+0x14c/0x3d0 [ 35.457531] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.458243] kthread+0x24c/0x2d0 [ 35.458924] ret_from_fork+0x10/0x20 [ 35.459428] [ 35.459877] Allocated by task 204: [ 35.460755] kasan_save_stack+0x3c/0x68 [ 35.461373] kasan_save_track+0x20/0x40 [ 35.461932] kasan_save_alloc_info+0x40/0x58 [ 35.462621] __kasan_slab_alloc+0xa8/0xb0 [ 35.463203] kmem_cache_alloc_noprof+0x108/0x3a0 [ 35.463887] __kmem_cache_create_args+0x18c/0x2b0 [ 35.465205] kmem_cache_double_destroy+0xc8/0x2f8 [ 35.466097] kunit_try_run_case+0x14c/0x3d0 [ 35.466655] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.467597] kthread+0x24c/0x2d0 [ 35.468164] ret_from_fork+0x10/0x20 [ 35.468763] [ 35.469113] Freed by task 204: [ 35.469627] kasan_save_stack+0x3c/0x68 [ 35.470339] kasan_save_track+0x20/0x40 [ 35.470921] kasan_save_free_info+0x4c/0x78 [ 35.471589] __kasan_slab_free+0x6c/0x98 [ 35.472106] kmem_cache_free+0x118/0x470 [ 35.472742] slab_kmem_cache_release+0x38/0x50 [ 35.473374] kmem_cache_release+0x1c/0x30 [ 35.474037] kobject_put+0x17c/0x430 [ 35.474845] sysfs_slab_release+0x1c/0x30 [ 35.475350] kmem_cache_destroy+0x118/0x218 [ 35.476150] kmem_cache_double_destroy+0x130/0x2f8 [ 35.476729] kunit_try_run_case+0x14c/0x3d0 [ 35.477537] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.478129] kthread+0x24c/0x2d0 [ 35.479200] ret_from_fork+0x10/0x20 [ 35.479799] [ 35.480220] The buggy address belongs to the object at fff00000c408c780 [ 35.480220] which belongs to the cache kmem_cache of size 208 [ 35.482611] The buggy address is located 0 bytes inside of [ 35.482611] freed 208-byte region [fff00000c408c780, fff00000c408c850) [ 35.484863] [ 35.485384] The buggy address belongs to the physical page: [ 35.486976] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10408c [ 35.488140] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 35.488982] page_type: f5(slab) [ 35.489567] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 35.490499] raw: 0000000000000000 00000000800c000c 00000001f5000000 0000000000000000 [ 35.491476] page dumped because: kasan: bad access detected [ 35.492295] [ 35.492586] Memory state around the buggy address: [ 35.493240] fff00000c408c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.494253] fff00000c408c700: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.495108] >fff00000c408c780: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.496165] ^ [ 35.497114] fff00000c408c800: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 35.497967] fff00000c408c880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.498668] ==================================================================
[ 26.505652] ================================================================== [ 26.506473] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bd/0x380 [ 26.507311] Read of size 1 at addr ffff888101a67500 by task kunit_try_catch/223 [ 26.507885] [ 26.508188] CPU: 0 UID: 0 PID: 223 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 26.509099] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.509504] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.510621] Call Trace: [ 26.510895] <TASK> [ 26.511258] dump_stack_lvl+0x73/0xb0 [ 26.511699] print_report+0xd1/0x640 [ 26.512150] ? __virt_addr_valid+0x1db/0x2d0 [ 26.512620] ? kasan_complete_mode_report_info+0x64/0x200 [ 26.513388] kasan_report+0x102/0x140 [ 26.513769] ? kmem_cache_double_destroy+0x1bd/0x380 [ 26.514344] ? kmem_cache_double_destroy+0x1bd/0x380 [ 26.515405] ? kmem_cache_double_destroy+0x1bd/0x380 [ 26.515883] __kasan_check_byte+0x3d/0x50 [ 26.516166] kmem_cache_destroy+0x25/0x1d0 [ 26.516753] kmem_cache_double_destroy+0x1bd/0x380 [ 26.517397] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 26.518053] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 26.518679] ? __pfx_empty_cache_ctor+0x10/0x10 [ 26.519310] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 26.519949] kunit_try_run_case+0x1b3/0x490 [ 26.520524] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.520990] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.521554] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.522165] ? __kthread_parkme+0x82/0x160 [ 26.522970] ? preempt_count_sub+0x50/0x80 [ 26.523751] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.524188] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.524726] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.525175] kthread+0x257/0x310 [ 26.526014] ? __pfx_kthread+0x10/0x10 [ 26.526357] ret_from_fork+0x41/0x80 [ 26.527021] ? __pfx_kthread+0x10/0x10 [ 26.527584] ret_from_fork_asm+0x1a/0x30 [ 26.528186] </TASK> [ 26.528536] [ 26.529224] Allocated by task 223: [ 26.529737] kasan_save_stack+0x3d/0x60 [ 26.530171] kasan_save_track+0x18/0x40 [ 26.530963] kasan_save_alloc_info+0x3b/0x50 [ 26.531617] __kasan_slab_alloc+0x91/0xa0 [ 26.532164] kmem_cache_alloc_noprof+0x11e/0x3f0 [ 26.532658] __kmem_cache_create_args+0x177/0x250 [ 26.533385] kmem_cache_double_destroy+0xd3/0x380 [ 26.533779] kunit_try_run_case+0x1b3/0x490 [ 26.534173] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.535265] kthread+0x257/0x310 [ 26.535778] ret_from_fork+0x41/0x80 [ 26.536380] ret_from_fork_asm+0x1a/0x30 [ 26.537271] [ 26.537416] Freed by task 223: [ 26.537650] kasan_save_stack+0x3d/0x60 [ 26.538120] kasan_save_track+0x18/0x40 [ 26.539129] kasan_save_free_info+0x3f/0x60 [ 26.539620] __kasan_slab_free+0x56/0x70 [ 26.540056] kmem_cache_free+0x120/0x420 [ 26.540630] slab_kmem_cache_release+0x2e/0x40 [ 26.541378] kmem_cache_release+0x16/0x20 [ 26.542099] kobject_put+0x181/0x450 [ 26.542354] sysfs_slab_release+0x16/0x20 [ 26.543054] kmem_cache_destroy+0xf0/0x1d0 [ 26.543789] kmem_cache_double_destroy+0x14c/0x380 [ 26.544330] kunit_try_run_case+0x1b3/0x490 [ 26.544712] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.545252] kthread+0x257/0x310 [ 26.546049] ret_from_fork+0x41/0x80 [ 26.546741] ret_from_fork_asm+0x1a/0x30 [ 26.547069] [ 26.547592] The buggy address belongs to the object at ffff888101a67500 [ 26.547592] which belongs to the cache kmem_cache of size 208 [ 26.548719] The buggy address is located 0 bytes inside of [ 26.548719] freed 208-byte region [ffff888101a67500, ffff888101a675d0) [ 26.549653] [ 26.550518] The buggy address belongs to the physical page: [ 26.550995] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101a67 [ 26.551710] flags: 0x200000000000000(node=0|zone=2) [ 26.552273] page_type: f5(slab) [ 26.553181] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 26.553784] raw: 0000000000000000 00000000800c000c 00000001f5000000 0000000000000000 [ 26.554864] page dumped because: kasan: bad access detected [ 26.555399] [ 26.556115] Memory state around the buggy address: [ 26.556394] ffff888101a67400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.557427] ffff888101a67480: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.558553] >ffff888101a67500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.559043] ^ [ 26.559261] ffff888101a67580: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 26.560383] ffff888101a67600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.561269] ==================================================================