* [PATCH for-4.14 0/2] tools: two minor fixes for libxenhypfs
@ 2020-06-09 14:48 Juergen Gross
2020-06-09 14:48 ` [PATCH for-4.14 1/2] tools: fix error path of xenhypfs_open() Juergen Gross
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Juergen Gross @ 2020-06-09 14:48 UTC (permalink / raw)
To: xen-devel; +Cc: Juergen Gross, Ian Jackson, Wei Liu, paul
Two fixes for libxenhypfs:
- xenhypfs terminating with segfault when hypervisor doesn't have
hypfs support
- wrong error reporting in case for access errors with xenhypfs
Juergen Gross (2):
tools: fix error path of xenhypfs_open()
tools: fix setting of errno in xenhypfs_read_raw()
tools/libs/hypfs/core.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--
2.26.2
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH for-4.14 1/2] tools: fix error path of xenhypfs_open()
2020-06-09 14:48 [PATCH for-4.14 0/2] tools: two minor fixes for libxenhypfs Juergen Gross
@ 2020-06-09 14:48 ` Juergen Gross
2020-06-09 14:56 ` Paul Durrant
2020-06-09 14:48 ` [PATCH for-4.14 2/2] tools: fix setting of errno in xenhypfs_read_raw() Juergen Gross
2020-06-09 15:38 ` [PATCH for-4.14 0/2] tools: two minor fixes for libxenhypfs Wei Liu
2 siblings, 1 reply; 6+ messages in thread
From: Juergen Gross @ 2020-06-09 14:48 UTC (permalink / raw)
To: xen-devel; +Cc: Juergen Gross, Andrew Cooper, Ian Jackson, Wei Liu, paul
In case of an error in xenhypfs_open() the error path will cause a
segmentation fault due to a wrong sequence of closing calls.
Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
---
tools/libs/hypfs/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/libs/hypfs/core.c b/tools/libs/hypfs/core.c
index c91e165705..fc23b02586 100644
--- a/tools/libs/hypfs/core.c
+++ b/tools/libs/hypfs/core.c
@@ -74,8 +74,8 @@ xenhypfs_handle *xenhypfs_open(xentoollog_logger *logger,
return fshdl;
err:
- xtl_logger_destroy(fshdl->logger_tofree);
xencall_close(fshdl->xcall);
+ xtl_logger_destroy(fshdl->logger_tofree);
free(fshdl);
return NULL;
}
--
2.26.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH for-4.14 2/2] tools: fix setting of errno in xenhypfs_read_raw()
2020-06-09 14:48 [PATCH for-4.14 0/2] tools: two minor fixes for libxenhypfs Juergen Gross
2020-06-09 14:48 ` [PATCH for-4.14 1/2] tools: fix error path of xenhypfs_open() Juergen Gross
@ 2020-06-09 14:48 ` Juergen Gross
2020-06-09 15:02 ` Paul Durrant
2020-06-09 15:38 ` [PATCH for-4.14 0/2] tools: two minor fixes for libxenhypfs Wei Liu
2 siblings, 1 reply; 6+ messages in thread
From: Juergen Gross @ 2020-06-09 14:48 UTC (permalink / raw)
To: xen-devel; +Cc: Juergen Gross, Ian Jackson, George Dunlap, Wei Liu, paul
Setting of errno is wrong in xenhypfs_read_raw(), fix it.
Reported-by: George Dunlap <george.dunlap@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
---
tools/libs/hypfs/core.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/tools/libs/hypfs/core.c b/tools/libs/hypfs/core.c
index fc23b02586..f94c5ea1e2 100644
--- a/tools/libs/hypfs/core.c
+++ b/tools/libs/hypfs/core.c
@@ -241,10 +241,8 @@ void *xenhypfs_read_raw(xenhypfs_handle *fshdl, const char *path,
if (!ret)
break;
- if (ret != ENOBUFS) {
- errno = -ret;
+ if (errno != ENOBUFS)
goto out;
- }
}
content = malloc(entry->content_len);
--
2.26.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* RE: [PATCH for-4.14 1/2] tools: fix error path of xenhypfs_open()
2020-06-09 14:48 ` [PATCH for-4.14 1/2] tools: fix error path of xenhypfs_open() Juergen Gross
@ 2020-06-09 14:56 ` Paul Durrant
0 siblings, 0 replies; 6+ messages in thread
From: Paul Durrant @ 2020-06-09 14:56 UTC (permalink / raw)
To: 'Juergen Gross', xen-devel
Cc: 'Andrew Cooper', 'Ian Jackson', 'Wei Liu'
> -----Original Message-----
> From: Juergen Gross <jgross@suse.com>
> Sent: 09 June 2020 15:49
> To: xen-devel@lists.xenproject.org
> Cc: paul@xen.org; Juergen Gross <jgross@suse.com>; Ian Jackson <ian.jackson@eu.citrix.com>; Wei Liu
> <wl@xen.org>; Andrew Cooper <andrew.cooper3@citrix.com>
> Subject: [PATCH for-4.14 1/2] tools: fix error path of xenhypfs_open()
>
> In case of an error in xenhypfs_open() the error path will cause a
> segmentation fault due to a wrong sequence of closing calls.
>
> Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
> Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Release-acked-by: Paul Durrant <paul@xen.org>
> ---
> tools/libs/hypfs/core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/libs/hypfs/core.c b/tools/libs/hypfs/core.c
> index c91e165705..fc23b02586 100644
> --- a/tools/libs/hypfs/core.c
> +++ b/tools/libs/hypfs/core.c
> @@ -74,8 +74,8 @@ xenhypfs_handle *xenhypfs_open(xentoollog_logger *logger,
> return fshdl;
>
> err:
> - xtl_logger_destroy(fshdl->logger_tofree);
> xencall_close(fshdl->xcall);
> + xtl_logger_destroy(fshdl->logger_tofree);
> free(fshdl);
> return NULL;
> }
> --
> 2.26.2
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH for-4.14 2/2] tools: fix setting of errno in xenhypfs_read_raw()
2020-06-09 14:48 ` [PATCH for-4.14 2/2] tools: fix setting of errno in xenhypfs_read_raw() Juergen Gross
@ 2020-06-09 15:02 ` Paul Durrant
0 siblings, 0 replies; 6+ messages in thread
From: Paul Durrant @ 2020-06-09 15:02 UTC (permalink / raw)
To: 'Juergen Gross', xen-devel
Cc: 'Ian Jackson', 'George Dunlap', 'Wei Liu'
> -----Original Message-----
> From: Juergen Gross <jgross@suse.com>
> Sent: 09 June 2020 15:49
> To: xen-devel@lists.xenproject.org
> Cc: paul@xen.org; Juergen Gross <jgross@suse.com>; Ian Jackson <ian.jackson@eu.citrix.com>; Wei Liu
> <wl@xen.org>; George Dunlap <george.dunlap@citrix.com>
> Subject: [PATCH for-4.14 2/2] tools: fix setting of errno in xenhypfs_read_raw()
>
> Setting of errno is wrong in xenhypfs_read_raw(), fix it.
>
> Reported-by: George Dunlap <george.dunlap@citrix.com>
> Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Release-acked-by: Paul Durrant <paul@xen.org>
> ---
> tools/libs/hypfs/core.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/tools/libs/hypfs/core.c b/tools/libs/hypfs/core.c
> index fc23b02586..f94c5ea1e2 100644
> --- a/tools/libs/hypfs/core.c
> +++ b/tools/libs/hypfs/core.c
> @@ -241,10 +241,8 @@ void *xenhypfs_read_raw(xenhypfs_handle *fshdl, const char *path,
> if (!ret)
> break;
>
> - if (ret != ENOBUFS) {
> - errno = -ret;
> + if (errno != ENOBUFS)
> goto out;
> - }
> }
>
> content = malloc(entry->content_len);
> --
> 2.26.2
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH for-4.14 0/2] tools: two minor fixes for libxenhypfs
2020-06-09 14:48 [PATCH for-4.14 0/2] tools: two minor fixes for libxenhypfs Juergen Gross
2020-06-09 14:48 ` [PATCH for-4.14 1/2] tools: fix error path of xenhypfs_open() Juergen Gross
2020-06-09 14:48 ` [PATCH for-4.14 2/2] tools: fix setting of errno in xenhypfs_read_raw() Juergen Gross
@ 2020-06-09 15:38 ` Wei Liu
2 siblings, 0 replies; 6+ messages in thread
From: Wei Liu @ 2020-06-09 15:38 UTC (permalink / raw)
To: Juergen Gross; +Cc: xen-devel, Ian Jackson, Wei Liu, paul
On Tue, Jun 09, 2020 at 04:48:48PM +0200, Juergen Gross wrote:
> Two fixes for libxenhypfs:
>
> - xenhypfs terminating with segfault when hypervisor doesn't have
> hypfs support
> - wrong error reporting in case for access errors with xenhypfs
>
> Juergen Gross (2):
> tools: fix error path of xenhypfs_open()
> tools: fix setting of errno in xenhypfs_read_raw()
Applied. I also added Fixes tags to them.
Wei.
>
> tools/libs/hypfs/core.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> --
> 2.26.2
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-06-09 15:39 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2020-06-09 14:48 [PATCH for-4.14 0/2] tools: two minor fixes for libxenhypfs Juergen Gross
2020-06-09 14:48 ` [PATCH for-4.14 1/2] tools: fix error path of xenhypfs_open() Juergen Gross
2020-06-09 14:56 ` Paul Durrant
2020-06-09 14:48 ` [PATCH for-4.14 2/2] tools: fix setting of errno in xenhypfs_read_raw() Juergen Gross
2020-06-09 15:02 ` Paul Durrant
2020-06-09 15:38 ` [PATCH for-4.14 0/2] tools: two minor fixes for libxenhypfs Wei Liu
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