* [PATCH] fs/ntfs3: remove redundant if-block in check_attr()
@ 2026-07-19 20:25 Matvey Kovalev
2026-10-07 21:32 ` Konstantin Komarov
0 siblings, 1 reply; 2+ messages in thread
From: Matvey Kovalev @ 2026-07-19 20:25 UTC (permalink / raw)
To: matvey.kovalev, Konstantin Komarov; +Cc: ntfs3, linux-kernel, lvc-project
Condition of this if-block repeats another one from if-block above. So,
condition is always false.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Matvey Kovalev <matvey.kovalev@ispras.ru>
---
fs/ntfs3/fslog.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c
index f038c799e7ac..7c40eff69959 100644
--- a/fs/ntfs3/fslog.c
+++ b/fs/ntfs3/fslog.c
@@ -2753,9 +2753,6 @@ static inline bool check_attr(const struct MFT_REC *rec,
return false;
}
- if (run_off > asize)
- return false;
-
if (run_unpack(NULL, sbi, 0, svcn, evcn, svcn,
Add2Ptr(attr, run_off), asize - run_off) < 0) {
return false;
--
2.54.0
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] fs/ntfs3: remove redundant if-block in check_attr()
2026-07-19 20:25 [PATCH] fs/ntfs3: remove redundant if-block in check_attr() Matvey Kovalev
@ 2026-10-07 21:32 ` Konstantin Komarov
0 siblings, 0 replies; 2+ messages in thread
From: Konstantin Komarov @ 2026-10-07 21:32 UTC (permalink / raw)
To: Matvey Kovalev; +Cc: ntfs3, linux-kernel, lvc-project
On 7/19/26 22:25, Matvey Kovalev wrote:
> Condition of this if-block repeats another one from if-block above. So,
> condition is always false.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Signed-off-by: Matvey Kovalev <matvey.kovalev@ispras.ru>
> ---
> fs/ntfs3/fslog.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c
> index f038c799e7ac..7c40eff69959 100644
> --- a/fs/ntfs3/fslog.c
> +++ b/fs/ntfs3/fslog.c
> @@ -2753,9 +2753,6 @@ static inline bool check_attr(const struct MFT_REC *rec,
> return false;
> }
>
> - if (run_off > asize)
> - return false;
> -
> if (run_unpack(NULL, sbi, 0, svcn, evcn, svcn,
> Add2Ptr(attr, run_off), asize - run_off) < 0) {
> return false;
> --
> 2.54.0
Hello,
The patch was applied, thanks.
Regards,
Konstantin
^ permalink raw reply [flat|nested] 2+ messages in thread
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2026-07-19 20:25 [PATCH] fs/ntfs3: remove redundant if-block in check_attr() Matvey Kovalev
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