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* Fix crash with a bad 9p client.

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Merge tag 'pull-9p-20241108' of https://github.com/cschoenebeck/qemu into staging

* Fix crash with a bad 9p client.

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# gpg: Signature made Fri 08 Nov 2024 09:56:30 GMT
# gpg:                using RSA key 96D8D110CF7AF8084F88590134C2B58765A47395
# gpg:                issuer "qemu_oss@crudebyte.com"
# gpg: Good signature from "Christian Schoenebeck <qemu_oss@crudebyte.com>" [unknown]
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* tag 'pull-9p-20241108' of https://github.com/cschoenebeck/qemu:
  9pfs: fix crash on 'Treaddir' request

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2024-11-08 10:26:15 +00:00
commit 96ed19c3bc
1 changed files with 5 additions and 0 deletions
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5
hw/9pfs/9p.c
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@ -2587,6 +2587,11 @@ static void coroutine_fn v9fs_readdir(void *opaque)
retval = -EINVAL; retval = -EINVAL;
goto out_nofid; goto out_nofid;
} }
if (fidp->fid_type != P9_FID_DIR) {
warn_report_once("9p: bad client: T_readdir on non-directory stream");
retval = -ENOTDIR;
goto out;
}
if (!fidp->fs.dir.stream) { if (!fidp->fs.dir.stream) {
retval = -EINVAL; retval = -EINVAL;
goto out; goto out;