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Debian: CVE-2021-47056: linux -- security update

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Debian: CVE-2021-47056: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
02/29/2024
Created
07/31/2024
Added
07/30/2024
Modified
01/28/2025

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]

Solution(s)

  • debian-upgrade-linux

References

  • https://attackerkb.com/topics/cve-2021-47056
  • CVE - 2021-47056
  • 查看数 705
  • 已创建
  • 最后回复

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