| Title | Replies (including bot) | Last reply |
|---|---|---|
| [PATCH] userfaultfd: fix lock leak in mfill_get_vma() | 1 (1) | 2026/03/16 17:38 |
syzbot |
sign-in | mailing list | source | docs |
| Title | Replies (including bot) | Last reply |
|---|---|---|
| [PATCH] userfaultfd: fix lock leak in mfill_get_vma() | 1 (1) | 2026/03/16 17:38 |
================================================
WARNING: lock held when returning to user space!
syzkaller #0 Tainted: G L
------------------------------------------------
syz.4.5868/25813 is leaving the kernel with locks still held!
2 locks held by syz.4.5868/25813:
#0: ffff88806504b308 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:310
#1: ffff88807c9501f0 (&ctx->map_changing_lock){++++}-{4:4}, at: mfill_get_vma+0x162/0x660 mm/userfaultfd.c:226
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026/03/14 12:47 | linux-next | b84a0ebe421c | ee8d34d6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-rust-kasan-gce | WARNING: lock held when returning to user space in lock_vma_under_rcu |