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| author | Natalia Petrova <n.petrova@fintech.ru> | 2022-09-28 13:25:05 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-10-21 19:15:35 +0800 |
| commit | 094528b6a5a755b1195a01e10b13597d67d1a0e6 (patch) | |
| tree | b46b5920458234f45b44d0861c9bf5f6485004c3 /drivers/crypto | |
| parent | 375de984a3cb691a0bbaf9756e8595e0b54e27e0 (diff) | |
| download | linux-094528b6a5a755b1195a01e10b13597d67d1a0e6.tar.bz2 | |
crypto: nitrox - avoid double free on error path in nitrox_sriov_init()
If alloc_workqueue() fails in nitrox_mbox_init() it deallocates
ndev->iov.vfdev and returns error code, but then nitrox_sriov_init()
calls nitrox_sriov_cleanup() where ndev->iov.vfdev is deallocated
again.
Fix this by nulling ndev->iov.vfdev after the first deallocation.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 9e5de3e06e54 ("crypto: cavium/nitrox - Add mailbox...")
Signed-off-by: Natalia Petrova <n.petrova@fintech.ru>
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/cavium/nitrox/nitrox_mbx.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/crypto/cavium/nitrox/nitrox_mbx.c b/drivers/crypto/cavium/nitrox/nitrox_mbx.c index 9e7308e39b30..d4e06999af9b 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_mbx.c +++ b/drivers/crypto/cavium/nitrox/nitrox_mbx.c @@ -195,6 +195,7 @@ int nitrox_mbox_init(struct nitrox_device *ndev) ndev->iov.pf2vf_wq = alloc_workqueue("nitrox_pf2vf", 0, 0); if (!ndev->iov.pf2vf_wq) { kfree(ndev->iov.vfdev); + ndev->iov.vfdev = NULL; return -ENOMEM; } /* enable pf2vf mailbox interrupts */ |