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| author | Vasily Averin <[email protected]> | 2017-11-10 07:19:26 +0000 |
|---|---|---|
| committer | J. Bruce Fields <[email protected]> | 2017-11-27 21:45:11 +0000 |
| commit | 6b18dd1c03e07262ea0866084856b2a3c5ba8d09 (patch) | |
| tree | 0e9780bbbd7ae2aa0913a5ebbff8822d5fa7edd4 /net/unix/af_unix.c | |
| parent | SUNRPC: make cache_detail structures const (diff) | |
| download | kernel-6b18dd1c03e07262ea0866084856b2a3c5ba8d09.tar.gz kernel-6b18dd1c03e07262ea0866084856b2a3c5ba8d09.zip | |
race of lockd inetaddr notifiers vs nlmsvc_rqst change
lockd_inet[6]addr_event use nlmsvc_rqst without taken nlmsvc_mutex,
nlmsvc_rqst can be changed during execution of notifiers and crash the host.
Patch enables access to nlmsvc_rqst only when it was correctly initialized
and delays its cleanup until notifiers are no longer in use.
Note that nlmsvc_rqst can be temporally set to ERR_PTR, so the "if
(nlmsvc_rqst)" check in notifiers is insufficient on its own.
Signed-off-by: Vasily Averin <[email protected]>
Tested-by: Scott Mayhew <[email protected]>
Signed-off-by: J. Bruce Fields <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions