Date
July 15, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.274104] ================================================================== [ 20.274195] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 20.274195] [ 20.274500] Use-after-free read at 0x000000008ede1ffe (in kfence-#90): [ 20.274669] test_use_after_free_read+0x114/0x248 [ 20.274722] kunit_try_run_case+0x170/0x3f0 [ 20.274765] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.274808] kthread+0x328/0x630 [ 20.274941] ret_from_fork+0x10/0x20 [ 20.275008] [ 20.275053] kfence-#90: 0x000000008ede1ffe-0x000000000ea96c6e, size=32, cache=test [ 20.275053] [ 20.275135] allocated by task 298 on cpu 0 at 20.273871s (0.001243s ago): [ 20.275214] test_alloc+0x230/0x628 [ 20.275260] test_use_after_free_read+0xd0/0x248 [ 20.275346] kunit_try_run_case+0x170/0x3f0 [ 20.275392] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.275438] kthread+0x328/0x630 [ 20.275474] ret_from_fork+0x10/0x20 [ 20.275512] [ 20.275761] freed by task 298 on cpu 0 at 20.273942s (0.001800s ago): [ 20.275906] test_use_after_free_read+0xf0/0x248 [ 20.275957] kunit_try_run_case+0x170/0x3f0 [ 20.275997] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.276041] kthread+0x328/0x630 [ 20.276075] ret_from_fork+0x10/0x20 [ 20.276123] [ 20.276167] CPU: 0 UID: 0 PID: 298 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 20.276258] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.276285] Hardware name: linux,dummy-virt (DT) [ 20.276543] ================================================================== [ 20.167865] ================================================================== [ 20.167963] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 20.167963] [ 20.168250] Use-after-free read at 0x00000000be839a73 (in kfence-#89): [ 20.168312] test_use_after_free_read+0x114/0x248 [ 20.168434] kunit_try_run_case+0x170/0x3f0 [ 20.168501] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.168545] kthread+0x328/0x630 [ 20.168585] ret_from_fork+0x10/0x20 [ 20.168623] [ 20.168647] kfence-#89: 0x00000000be839a73-0x00000000a2026642, size=32, cache=kmalloc-32 [ 20.168647] [ 20.168842] allocated by task 296 on cpu 0 at 20.167407s (0.001287s ago): [ 20.168945] test_alloc+0x29c/0x628 [ 20.168991] test_use_after_free_read+0xd0/0x248 [ 20.169164] kunit_try_run_case+0x170/0x3f0 [ 20.169254] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.169296] kthread+0x328/0x630 [ 20.169332] ret_from_fork+0x10/0x20 [ 20.169380] [ 20.169930] freed by task 296 on cpu 0 at 20.167637s (0.002044s ago): [ 20.170151] test_use_after_free_read+0x1c0/0x248 [ 20.170556] kunit_try_run_case+0x170/0x3f0 [ 20.170665] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.170789] kthread+0x328/0x630 [ 20.170877] ret_from_fork+0x10/0x20 [ 20.170944] [ 20.171324] CPU: 0 UID: 0 PID: 296 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 20.171523] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.171640] Hardware name: linux,dummy-virt (DT) [ 20.171675] ==================================================================
[ 17.915811] ================================================================== [ 17.916209] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.916209] [ 17.916681] Use-after-free read at 0x(____ptrval____) (in kfence-#69): [ 17.916980] test_use_after_free_read+0x129/0x270 [ 17.917211] kunit_try_run_case+0x1a5/0x480 [ 17.917397] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.917729] kthread+0x337/0x6f0 [ 17.917916] ret_from_fork+0x116/0x1d0 [ 17.918054] ret_from_fork_asm+0x1a/0x30 [ 17.918218] [ 17.918316] kfence-#69: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 17.918316] [ 17.918799] allocated by task 314 on cpu 1 at 17.915664s (0.003133s ago): [ 17.919097] test_alloc+0x2a6/0x10f0 [ 17.919231] test_use_after_free_read+0xdc/0x270 [ 17.919459] kunit_try_run_case+0x1a5/0x480 [ 17.919744] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.919974] kthread+0x337/0x6f0 [ 17.920150] ret_from_fork+0x116/0x1d0 [ 17.920309] ret_from_fork_asm+0x1a/0x30 [ 17.920526] [ 17.920620] freed by task 314 on cpu 1 at 17.915722s (0.004896s ago): [ 17.920876] test_use_after_free_read+0xfb/0x270 [ 17.921061] kunit_try_run_case+0x1a5/0x480 [ 17.921271] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.921528] kthread+0x337/0x6f0 [ 17.921702] ret_from_fork+0x116/0x1d0 [ 17.921871] ret_from_fork_asm+0x1a/0x30 [ 17.922036] [ 17.922158] CPU: 1 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 17.922597] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.922736] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.923124] ================================================================== [ 17.811836] ================================================================== [ 17.812355] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.812355] [ 17.812958] Use-after-free read at 0x(____ptrval____) (in kfence-#68): [ 17.813222] test_use_after_free_read+0x129/0x270 [ 17.813482] kunit_try_run_case+0x1a5/0x480 [ 17.813779] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.814028] kthread+0x337/0x6f0 [ 17.814155] ret_from_fork+0x116/0x1d0 [ 17.814352] ret_from_fork_asm+0x1a/0x30 [ 17.814648] [ 17.814768] kfence-#68: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 17.814768] [ 17.815171] allocated by task 312 on cpu 1 at 17.811610s (0.003559s ago): [ 17.815524] test_alloc+0x364/0x10f0 [ 17.815906] test_use_after_free_read+0xdc/0x270 [ 17.816079] kunit_try_run_case+0x1a5/0x480 [ 17.816277] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.816922] kthread+0x337/0x6f0 [ 17.817159] ret_from_fork+0x116/0x1d0 [ 17.817440] ret_from_fork_asm+0x1a/0x30 [ 17.817658] [ 17.817745] freed by task 312 on cpu 1 at 17.811666s (0.006077s ago): [ 17.818044] test_use_after_free_read+0x1e7/0x270 [ 17.818266] kunit_try_run_case+0x1a5/0x480 [ 17.818465] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.818695] kthread+0x337/0x6f0 [ 17.818873] ret_from_fork+0x116/0x1d0 [ 17.819066] ret_from_fork_asm+0x1a/0x30 [ 17.819243] [ 17.819346] CPU: 1 UID: 0 PID: 312 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 17.819774] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.819961] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.820345] ==================================================================