[Bug 205164] BPF gives EIO with sendmsg() where write > pagesize

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 23 Jun 2021 16:41:10 +0000
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205164

--- Comment #6 from commit-hook_at_FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=f13da24715a75ce0fdac31062866877d980aa908

commit f13da24715a75ce0fdac31062866877d980aa908
Author:     Florian Florensa <florian_at_florensa.me>
AuthorDate: 2018-02-16 09:53:22 +0000
Commit:     Warner Losh <imp_at_FreeBSD.org>
CommitDate: 2021-06-23 16:39:18 +0000

    net/bpf: Fix writing of buffer bigger than PAGESIZE

    When allocating the mbuf we used m_get2 which fails
    if len is superior to MJUMPAGESIZE, if its the case,
    use m_getjcl instead.

    Reviewed by:    kp_at_
    PR:             205164
    Pull Request:   https://github.com/freebsd/freebsd-src/pull/131

 sys/net/bpf.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

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Received on Wed Jun 23 2021 - 16:41:10 UTC

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