lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:   Thu,  7 Jul 2022 23:19:58 -0400
From:   "Theodore Ts'o" <>
Cc:     "Theodore Ts'o" <>,,,
Subject: Re: [PATCH] jbd2: fix outstanding credits assert in jbd2_journal_commit_transaction()

On Sat, 11 Jun 2022 21:04:26 +0800, Zhang Yi wrote:
> We catch an assert problem in jbd2_journal_commit_transaction() when
> doing fsstress and request falut injection tests. The problem is
> happened in a race condition between jbd2_journal_commit_transaction()
> and ext4_end_io_end(). Firstly, ext4_writepages() writeback dirty pages
> and start reserved handle, and then the journal was aborted due to some
> previous metadata IO error, jbd2_journal_abort() start to commit current
> running transaction, the committing procedure could be raced by
> ext4_end_io_end() and lead to subtract j_reserved_credits twice from
> commit_transaction->t_outstanding_credits, finally the
> t_outstanding_credits is mistakenly smaller than t_nr_buffers and
> trigger assert.
> [...]

Applied, thanks!

[1/1] jbd2: fix outstanding credits assert in jbd2_journal_commit_transaction()
      commit: f8dc286e4d942dab79d1814e0708ac91052a34fa

Best regards,
Theodore Ts'o <>

Powered by blists - more mailing lists