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SubjectRe: [PATCH -next v3 0/2] jffs2: fix two memory leak when mount jffs2
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在 2022/1/14 18:28, Baokun Li 写道:

ping

> V1->V2:
> In jffs2_scan_medium,
> if s = kzalloc(sizeof(struct jffs2_summary), GFP_KERNEL);
> returns error, go to "out" to do clear. Null pointer dereference
> occurs when if (s->sum_list_head) is executed in "out".
>
> V2->V3:
> Sorry for the noise, but there seems to be a more elegant way to
> fix the memory leak in jffs2_scan_medium. When memory allocation
> fails or CONFIG_JFFS2_SUMMARY is N, s is NULL.For the former case,
> add the new tag "out_buf" to avoid it.In the latter case,
> jffs2_sum_reset_collected is also an empty function and does nothing.
>
> Baokun Li (2):
> jffs2: fix memory leak in jffs2_do_mount_fs
> jffs2: fix memory leak in jffs2_scan_medium
>
> fs/jffs2/build.c | 4 +++-
> fs/jffs2/scan.c | 6 ++++--
> 2 files changed, 7 insertions(+), 3 deletions(-)
>

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