diff --git a/qemu.spec b/qemu.spec index dc47aff24f61191d9239df72976f2e26a00ba6cb..b476bf285dd77631d6bbb90d762f6c3e262cac79 100644 --- a/qemu.spec +++ b/qemu.spec @@ -1,6 +1,6 @@ Name: qemu Version: 6.2.0 -Release: 22 +Release: 23 Epoch: 2 Summary: QEMU is a generic and open source machine emulator and virtualizer License: GPLv2 and BSD and MIT and CC-BY-SA-4.0 @@ -232,6 +232,8 @@ Patch0218: qcow2-fix-memory-leak-in-qcow2_read_extensions.patch Patch0219: scsi-disk-define-props-in-scsi_block_disk-to-avoid-m.patch Patch0220: pcie-Add-pcie-root-port-fast-plug-unplug-feature.patch Patch0221: pcie-Compat-with-devices-which-do-not-support-Link-W.patch +Patch0222: scsi-bus-fix-unmatched-object_unref.patch +Patch0223: tools-virtiofsd-Add-rseq-syscall-to-the-seccomp-allo.patch BuildRequires: flex BuildRequires: gcc @@ -679,6 +681,12 @@ getent passwd qemu >/dev/null || \ %endif %changelog +* Thu Mar 03 2022 Chen Qun +- tools/virtiofsd: Add rseq syscall to the seccomp allowlist + +* Thu Mar 03 2022 Chen Qun +- scsi-bus: fix unmatched object_unref() + * Sat Feb 26 2022 Yan Wang - pl011-reset-read-FIFO-when-UARTTIMSC-0-UARTICR-0xfff.patch - qcow2-fix-memory-leak-in-qcow2_read_extensions.patch diff --git a/scsi-bus-fix-unmatched-object_unref.patch b/scsi-bus-fix-unmatched-object_unref.patch new file mode 100644 index 0000000000000000000000000000000000000000..0cb39a07610c8da0396119e87e942b400dbdddf5 --- /dev/null +++ b/scsi-bus-fix-unmatched-object_unref.patch @@ -0,0 +1,42 @@ +From 239ffdcf42e0795b5f025f87fa19ce01642811f2 Mon Sep 17 00:00:00 2001 +From: Yan Wang +Date: Tue, 1 Mar 2022 20:12:12 +0800 +Subject: [PATCH] scsi-bus: fix unmatched object_unref() + +Fix commit 391dd8f1("scsi-bus: Refactor the code that retries requests"), +which split scsi_dma_restart_bh(), but the object_unref() belongs to +scsi_dma_restart_bh(). +So, we should mv object_unref() from scsi_retry_requests() to +scsi_dma_restart_bh(). + +Signed-off-by: Yan Wang +--- + hw/scsi/scsi-bus.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c +index 5e6f891b9d..9d37f490ce 100644 +--- a/hw/scsi/scsi-bus.c ++++ b/hw/scsi/scsi-bus.c +@@ -166,8 +166,6 @@ void scsi_retry_requests(SCSIDevice *s) + scsi_req_unref(req); + } + aio_context_release(blk_get_aio_context(s->conf.blk)); +- /* Drop the reference that was acquired in scsi_dma_restart_cb */ +- object_unref(OBJECT(s)); + } + + static void scsi_dma_restart_bh(void *opaque) +@@ -178,6 +176,9 @@ static void scsi_dma_restart_bh(void *opaque) + s->bh = NULL; + + scsi_retry_requests(s); ++ ++ /* Drop the reference that was acquired in scsi_dma_restart_cb */ ++ object_unref(OBJECT(s)); + } + + void scsi_req_retry(SCSIRequest *req) +-- +2.27.0 + diff --git a/tools-virtiofsd-Add-rseq-syscall-to-the-seccomp-allo.patch b/tools-virtiofsd-Add-rseq-syscall-to-the-seccomp-allo.patch new file mode 100644 index 0000000000000000000000000000000000000000..b59ef0fb1cc4fb68c6f5fd1d148e4d4cf3cd7d76 --- /dev/null +++ b/tools-virtiofsd-Add-rseq-syscall-to-the-seccomp-allo.patch @@ -0,0 +1,58 @@ +From 5ca1beec7030b5d9fea36eb4f037d4e0e6c260bd Mon Sep 17 00:00:00 2001 +From: Christian Ehrhardt +Date: Wed, 9 Feb 2022 12:14:56 +0100 +Subject: [PATCH] tools/virtiofsd: Add rseq syscall to the seccomp allowlist + +The virtiofsd currently crashes when used with glibc 2.35. +That is due to the rseq system call being added to every thread +creation [1][2]. + +[1]: https://www.efficios.com/blog/2019/02/08/linux-restartable-sequences/ +[2]: https://sourceware.org/pipermail/libc-alpha/2022-February/136040.html + +This happens not at daemon start, but when a guest connects + + /usr/lib/qemu/virtiofsd -f --socket-path=/tmp/testvfsd -o sandbox=chroot \ + -o source=/var/guests/j-virtiofs --socket-group=kvm + virtio_session_mount: Waiting for vhost-user socket connection... + # start ok, now guest will connect + virtio_session_mount: Received vhost-user socket connection + virtio_loop: Entry + fv_queue_set_started: qidx=0 started=1 + fv_queue_set_started: qidx=1 started=1 + Bad system call (core dumped) + +We have to put rseq on the seccomp allowlist to avoid that the daemon +is crashing in this case. + +Reported-by: Michael Hudson-Doyle +Signed-off-by: Christian Ehrhardt +Reviewed-by: Dr. David Alan Gilbert +Message-id: 20220209111456.3328420-1-christian.ehrhardt@canonical.com + +[Moved rseq to its alphabetically ordered position in the seccomp +allowlist. +--Stefan] +Signed-off-by: Stefan Hajnoczi +Signed-off-by: qinyu +--- + tools/virtiofsd/passthrough_seccomp.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/tools/virtiofsd/passthrough_seccomp.c b/tools/virtiofsd/passthrough_seccomp.c +index a3ce9f898d..2bc0127b69 100644 +--- a/tools/virtiofsd/passthrough_seccomp.c ++++ b/tools/virtiofsd/passthrough_seccomp.c +@@ -91,6 +91,9 @@ static const int syscall_allowlist[] = { + SCMP_SYS(renameat2), + SCMP_SYS(removexattr), + SCMP_SYS(restart_syscall), ++#ifdef __NR_rseq ++ SCMP_SYS(rseq), /* required since glibc 2.35 */ ++#endif + SCMP_SYS(rt_sigaction), + SCMP_SYS(rt_sigprocmask), + SCMP_SYS(rt_sigreturn), +-- +2.27.0 +