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CVE-2026-64018
9.3 CRITICAL
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Local (L)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Changed (C)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): High (H)
- Modified Attack Vector (MAV): Local (L)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): High (H)
Activity log
- Created & dismissed (max. allowed matches exceeded) suggestion
net: mana: validate rx_req_idx to prevent out-of-bounds array access
In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rx_req_idx to prevent out-of-bounds array access In mana_hwc_rx_event_handler(), rx_req_idx is derived from sge->address in DMA-coherent memory. In Confidential VMs (SEV-SNP/TDX), this memory is shared unencrypted and HW can modify WQE contents at any time. No bounds check exists on rx_req_idx, which can lead to an out-of-bounds access into reqs[]. Add bounds check on rx_req_idx in mana_hwc_rx_event_handler() before using it to index the reqs[] array.
References
Affected products
Linux
- <5ddc715324badd7f2641bc177db1d027b402adae
- <355e9f2b2a7887ca38100127989af3e422ba71d0
- <b809d0409991b75a6cff846a5ac27c3062953f84
- <763a372d344fb12fae566d36ddb46e92454ad58c
- =<6.18.*
- <01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01
- =<7.0.*
- =<6.12.*
- <ff1d5af207bcea857d45fe81505f1bc4b29eaef0
- <fa627a5eaa83fc0261f44ef3769693b886ca6e27
- <5.13
- =<6.1.*
- =<*
- =<6.6.*
- =<5.15.*
- ==5.13