Date
July 20, 2025, 8:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.107012] ================================================================== [ 20.107384] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 20.107384] [ 20.107490] Use-after-free read at 0x00000000289c42ac (in kfence-#91): [ 20.107543] test_use_after_free_read+0x114/0x248 [ 20.107647] kunit_try_run_case+0x170/0x3f0 [ 20.107732] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.108073] kthread+0x328/0x630 [ 20.108149] ret_from_fork+0x10/0x20 [ 20.108450] [ 20.108750] kfence-#91: 0x00000000289c42ac-0x000000005666c8c8, size=32, cache=test [ 20.108750] [ 20.109128] allocated by task 298 on cpu 0 at 20.106773s (0.002047s ago): [ 20.109235] test_alloc+0x230/0x628 [ 20.109279] test_use_after_free_read+0xd0/0x248 [ 20.109356] kunit_try_run_case+0x170/0x3f0 [ 20.109466] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.109798] kthread+0x328/0x630 [ 20.110137] ret_from_fork+0x10/0x20 [ 20.110322] [ 20.110443] freed by task 298 on cpu 0 at 20.106834s (0.003554s ago): [ 20.110885] test_use_after_free_read+0xf0/0x248 [ 20.111069] kunit_try_run_case+0x170/0x3f0 [ 20.111145] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.111616] kthread+0x328/0x630 [ 20.111725] ret_from_fork+0x10/0x20 [ 20.112090] [ 20.112180] CPU: 0 UID: 0 PID: 298 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 20.112686] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.112767] Hardware name: linux,dummy-virt (DT) [ 20.112814] ================================================================== [ 20.002420] ================================================================== [ 20.002495] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 20.002495] [ 20.002952] Use-after-free read at 0x00000000d283dde0 (in kfence-#90): [ 20.003031] test_use_after_free_read+0x114/0x248 [ 20.003092] kunit_try_run_case+0x170/0x3f0 [ 20.003138] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.003182] kthread+0x328/0x630 [ 20.003231] ret_from_fork+0x10/0x20 [ 20.003640] [ 20.003686] kfence-#90: 0x00000000d283dde0-0x00000000fc6129ec, size=32, cache=kmalloc-32 [ 20.003686] [ 20.003884] allocated by task 296 on cpu 0 at 20.001967s (0.001773s ago): [ 20.003969] test_alloc+0x29c/0x628 [ 20.004204] test_use_after_free_read+0xd0/0x248 [ 20.004267] kunit_try_run_case+0x170/0x3f0 [ 20.004320] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.004365] kthread+0x328/0x630 [ 20.004400] ret_from_fork+0x10/0x20 [ 20.004525] [ 20.004611] freed by task 296 on cpu 0 at 20.002182s (0.002401s ago): [ 20.004683] test_use_after_free_read+0x1c0/0x248 [ 20.004726] kunit_try_run_case+0x170/0x3f0 [ 20.004773] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.004816] kthread+0x328/0x630 [ 20.004852] ret_from_fork+0x10/0x20 [ 20.005149] [ 20.005370] CPU: 0 UID: 0 PID: 296 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 20.005559] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.005635] Hardware name: linux,dummy-virt (DT) [ 20.005726] ==================================================================
[ 18.467590] ================================================================== [ 18.468133] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 18.468133] [ 18.468554] Use-after-free read at 0x(____ptrval____) (in kfence-#72): [ 18.468995] test_use_after_free_read+0x129/0x270 [ 18.469273] kunit_try_run_case+0x1a5/0x480 [ 18.469432] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.469622] kthread+0x337/0x6f0 [ 18.469753] ret_from_fork+0x116/0x1d0 [ 18.470189] ret_from_fork_asm+0x1a/0x30 [ 18.470602] [ 18.470803] kfence-#72: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 18.470803] [ 18.471663] allocated by task 315 on cpu 0 at 18.467421s (0.004240s ago): [ 18.472390] test_alloc+0x2a6/0x10f0 [ 18.472598] test_use_after_free_read+0xdc/0x270 [ 18.472783] kunit_try_run_case+0x1a5/0x480 [ 18.473025] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.473283] kthread+0x337/0x6f0 [ 18.473507] ret_from_fork+0x116/0x1d0 [ 18.473710] ret_from_fork_asm+0x1a/0x30 [ 18.473917] [ 18.474058] freed by task 315 on cpu 0 at 18.467482s (0.006573s ago): [ 18.474360] test_use_after_free_read+0xfb/0x270 [ 18.474611] kunit_try_run_case+0x1a5/0x480 [ 18.474857] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.475128] kthread+0x337/0x6f0 [ 18.475254] ret_from_fork+0x116/0x1d0 [ 18.475443] ret_from_fork_asm+0x1a/0x30 [ 18.475686] [ 18.475842] CPU: 0 UID: 0 PID: 315 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 18.476281] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.476486] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.476941] ================================================================== [ 18.363649] ================================================================== [ 18.364102] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 18.364102] [ 18.364592] Use-after-free read at 0x(____ptrval____) (in kfence-#71): [ 18.364920] test_use_after_free_read+0x129/0x270 [ 18.365098] kunit_try_run_case+0x1a5/0x480 [ 18.365312] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.365586] kthread+0x337/0x6f0 [ 18.365728] ret_from_fork+0x116/0x1d0 [ 18.365870] ret_from_fork_asm+0x1a/0x30 [ 18.366731] [ 18.366948] kfence-#71: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 18.366948] [ 18.367354] allocated by task 313 on cpu 1 at 18.363419s (0.003932s ago): [ 18.367670] test_alloc+0x364/0x10f0 [ 18.368182] test_use_after_free_read+0xdc/0x270 [ 18.368373] kunit_try_run_case+0x1a5/0x480 [ 18.368609] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.369000] kthread+0x337/0x6f0 [ 18.369167] ret_from_fork+0x116/0x1d0 [ 18.369345] ret_from_fork_asm+0x1a/0x30 [ 18.369564] [ 18.370100] freed by task 313 on cpu 1 at 18.363482s (0.006215s ago): [ 18.370452] test_use_after_free_read+0x1e7/0x270 [ 18.370798] kunit_try_run_case+0x1a5/0x480 [ 18.371005] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.371357] kthread+0x337/0x6f0 [ 18.371622] ret_from_fork+0x116/0x1d0 [ 18.371791] ret_from_fork_asm+0x1a/0x30 [ 18.372040] [ 18.372369] CPU: 1 UID: 0 PID: 313 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 18.372938] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.373093] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.373631] ==================================================================