Date
July 9, 2025, 2:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.170440] ================================================================== [ 21.170556] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 21.170556] [ 21.170663] Use-after-free read at 0x00000000ba64b1f9 (in kfence-#87): [ 21.170717] test_use_after_free_read+0x114/0x248 [ 21.170768] kunit_try_run_case+0x170/0x3f0 [ 21.170815] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.170860] kthread+0x328/0x630 [ 21.170900] ret_from_fork+0x10/0x20 [ 21.170941] [ 21.170965] kfence-#87: 0x00000000ba64b1f9-0x00000000b6ea57d3, size=32, cache=kmalloc-32 [ 21.170965] [ 21.171019] allocated by task 295 on cpu 0 at 21.170111s (0.000904s ago): [ 21.171108] test_alloc+0x29c/0x628 [ 21.171151] test_use_after_free_read+0xd0/0x248 [ 21.171194] kunit_try_run_case+0x170/0x3f0 [ 21.171237] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.171283] kthread+0x328/0x630 [ 21.171321] ret_from_fork+0x10/0x20 [ 21.171361] [ 21.171385] freed by task 295 on cpu 0 at 21.170217s (0.001164s ago): [ 21.171450] test_use_after_free_read+0x1c0/0x248 [ 21.171493] kunit_try_run_case+0x170/0x3f0 [ 21.171535] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.171579] kthread+0x328/0x630 [ 21.171616] ret_from_fork+0x10/0x20 [ 21.171658] [ 21.171706] CPU: 0 UID: 0 PID: 295 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5 #1 PREEMPT [ 21.171791] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 21.171823] Hardware name: linux,dummy-virt (DT) [ 21.171858] ================================================================== [ 21.274184] ================================================================== [ 21.274287] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 21.274287] [ 21.274381] Use-after-free read at 0x000000008c8d3acd (in kfence-#88): [ 21.274433] test_use_after_free_read+0x114/0x248 [ 21.274483] kunit_try_run_case+0x170/0x3f0 [ 21.274525] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.274571] kthread+0x328/0x630 [ 21.274610] ret_from_fork+0x10/0x20 [ 21.274651] [ 21.274676] kfence-#88: 0x000000008c8d3acd-0x0000000074e35e1b, size=32, cache=test [ 21.274676] [ 21.274728] allocated by task 297 on cpu 0 at 21.273959s (0.000766s ago): [ 21.274800] test_alloc+0x230/0x628 [ 21.274843] test_use_after_free_read+0xd0/0x248 [ 21.274884] kunit_try_run_case+0x170/0x3f0 [ 21.274925] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.274969] kthread+0x328/0x630 [ 21.275004] ret_from_fork+0x10/0x20 [ 21.275045] [ 21.275068] freed by task 297 on cpu 0 at 21.274022s (0.001042s ago): [ 21.275183] test_use_after_free_read+0xf0/0x248 [ 21.275226] kunit_try_run_case+0x170/0x3f0 [ 21.275267] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.275311] kthread+0x328/0x630 [ 21.275348] ret_from_fork+0x10/0x20 [ 21.275387] [ 21.275430] CPU: 0 UID: 0 PID: 297 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5 #1 PREEMPT [ 21.275514] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 21.275544] Hardware name: linux,dummy-virt (DT) [ 21.275579] ==================================================================
[ 17.855410] ================================================================== [ 17.855922] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.855922] [ 17.856355] Use-after-free read at 0x(____ptrval____) (in kfence-#70): [ 17.856626] test_use_after_free_read+0x129/0x270 [ 17.856859] kunit_try_run_case+0x1a5/0x480 [ 17.857022] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.857329] kthread+0x337/0x6f0 [ 17.857501] ret_from_fork+0x116/0x1d0 [ 17.857706] ret_from_fork_asm+0x1a/0x30 [ 17.857906] [ 17.858010] kfence-#70: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 17.858010] [ 17.858415] allocated by task 312 on cpu 1 at 17.855168s (0.003245s ago): [ 17.858661] test_alloc+0x364/0x10f0 [ 17.858861] test_use_after_free_read+0xdc/0x270 [ 17.859167] kunit_try_run_case+0x1a5/0x480 [ 17.859331] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.859581] kthread+0x337/0x6f0 [ 17.859713] ret_from_fork+0x116/0x1d0 [ 17.859847] ret_from_fork_asm+0x1a/0x30 [ 17.860293] [ 17.860529] freed by task 312 on cpu 1 at 17.855249s (0.005196s ago): [ 17.861053] test_use_after_free_read+0x1e7/0x270 [ 17.861225] kunit_try_run_case+0x1a5/0x480 [ 17.861413] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.861712] kthread+0x337/0x6f0 [ 17.862434] ret_from_fork+0x116/0x1d0 [ 17.862589] ret_from_fork_asm+0x1a/0x30 [ 17.862772] [ 17.862994] CPU: 1 UID: 0 PID: 312 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 17.863326] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.863467] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.863754] ================================================================== [ 17.959312] ================================================================== [ 17.959766] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.959766] [ 17.960165] Use-after-free read at 0x(____ptrval____) (in kfence-#71): [ 17.960474] test_use_after_free_read+0x129/0x270 [ 17.960704] kunit_try_run_case+0x1a5/0x480 [ 17.961217] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.961978] kthread+0x337/0x6f0 [ 17.962160] ret_from_fork+0x116/0x1d0 [ 17.962331] ret_from_fork_asm+0x1a/0x30 [ 17.962527] [ 17.962639] kfence-#71: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 17.962639] [ 17.963393] allocated by task 314 on cpu 1 at 17.959167s (0.004223s ago): [ 17.963759] test_alloc+0x2a6/0x10f0 [ 17.964133] test_use_after_free_read+0xdc/0x270 [ 17.964352] kunit_try_run_case+0x1a5/0x480 [ 17.964702] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.965117] kthread+0x337/0x6f0 [ 17.965270] ret_from_fork+0x116/0x1d0 [ 17.965589] ret_from_fork_asm+0x1a/0x30 [ 17.965822] [ 17.965922] freed by task 314 on cpu 1 at 17.959230s (0.006690s ago): [ 17.966484] test_use_after_free_read+0xfb/0x270 [ 17.966704] kunit_try_run_case+0x1a5/0x480 [ 17.967148] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.967503] kthread+0x337/0x6f0 [ 17.967704] ret_from_fork+0x116/0x1d0 [ 17.968062] ret_from_fork_asm+0x1a/0x30 [ 17.968252] [ 17.968393] CPU: 1 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 17.969032] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.969240] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.969758] ==================================================================