[lvc-project] [PATCH 0/2] cifs: fix integer overflow in match_server()

Roman Smirnov r.smirnov at omp.ru
Mon Mar 31 11:22:48 MSK 2025


If a large number is written to echo_interval during mount,
an integer overflow may occur in match_server():

smb3_fs_context_parse_param()

cifs_smb3_do_mount()
  sget()
    cifs_match_super()
      match_server()

Found by Linux Verification Center (linuxtesting.org) with Svace.

Roman Smirnov (2):
  cifs: fix integer overflow in match_server()
  cifs: remove unreachable code in cifs_get_tcp_session()

 fs/smb/client/connect.c    | 6 +-----
 fs/smb/client/fs_context.c | 5 +++++
 2 files changed, 6 insertions(+), 5 deletions(-)

-- 
2.34.1




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