diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2025-04-18 09:00:37 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2025-04-24 13:39:34 -0400 |
| commit | 45eb29140e68ffe8e93a5471006858a018480a45 (patch) | |
| tree | 5bf352a82619d2517a9f6eed17917b036e01da11 /io_uring/kbuf.c | |
| parent | fd02aa45bda6d2f2fedcab70e828867332ef7e1c (diff) | |
| parent | 2d7124941a273c7233849a7a2bbfbeb7e28f1caa (diff) | |
Merge branch 'kvm-fixes-6.15-rc4' into HEAD
* Single fix for broken usage of 'multi-MIDR' infrastructure in PI
code, adding an open-coded erratum check for Cavium ThunderX
* Bugfixes from a planned posted interrupt rework
* Do not use kvm_rip_read() unconditionally to cater for guests
with inaccessible register state.
Diffstat (limited to 'io_uring/kbuf.c')
| -rw-r--r-- | io_uring/kbuf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/io_uring/kbuf.c b/io_uring/kbuf.c index 098109259671..953d5e742569 100644 --- a/io_uring/kbuf.c +++ b/io_uring/kbuf.c @@ -504,6 +504,8 @@ int io_provide_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe p->nbufs = tmp; p->addr = READ_ONCE(sqe->addr); p->len = READ_ONCE(sqe->len); + if (!p->len) + return -EINVAL; if (check_mul_overflow((unsigned long)p->len, (unsigned long)p->nbufs, &size)) |