CVE-2021-47056
In the Linux kernel, the following vulnerability has been resolved: crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling…
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0. [ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 [qat_dh895xccvf]
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-908
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/05ec8192ee4bfdf2a8894a68350dac9f1a155fa6Patch
- https://git.kernel.org/stable/c/09d16cee6285d37cc76311c29add6d97a7e4acdaPatch
- https://git.kernel.org/stable/c/1ea500ce6f7c9106e4a561d28e69215f3d451818Patch
- https://git.kernel.org/stable/c/1f50392650ae794a1aea41c213c6a3e1c824413cPatch
- https://git.kernel.org/stable/c/20fd40fc6f2c2b41dc6f637f88d494b14e9c21f1Patch
- https://git.kernel.org/stable/c/446045cf682af12d9294765f6c46084b374b5654Patch
- https://git.kernel.org/stable/c/8609f5cfdc872fc3a462efa6a3eca5cb1e2f6446Patch
- https://git.kernel.org/stable/c/f4c4e07140687f42bfa40e091bb4a55d7960ce4dPatch
- https://git.kernel.org/stable/c/05ec8192ee4bfdf2a8894a68350dac9f1a155fa6Patch
- https://git.kernel.org/stable/c/09d16cee6285d37cc76311c29add6d97a7e4acdaPatch
- https://git.kernel.org/stable/c/1ea500ce6f7c9106e4a561d28e69215f3d451818Patch
- https://git.kernel.org/stable/c/1f50392650ae794a1aea41c213c6a3e1c824413cPatch
- https://git.kernel.org/stable/c/20fd40fc6f2c2b41dc6f637f88d494b14e9c21f1Patch
- https://git.kernel.org/stable/c/446045cf682af12d9294765f6c46084b374b5654Patch
- https://git.kernel.org/stable/c/8609f5cfdc872fc3a462efa6a3eca5cb1e2f6446Patch
- https://git.kernel.org/stable/c/f4c4e07140687f42bfa40e091bb4a55d7960ce4dPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.