In the Linux kernel, the following vulnerability has been resolved: nvme:
fix reconnection fail due to reserved tag allocation We found a issue on
production environment while using NVMe over RDMA, admin_q reconnect failed
forever while remote target and network is ok. After dig into it, we found
it may caused by a ABBA deadlock due to tag allocation. In my case, the tag
was hold by a keep alive request waiting inside admin_q, as we quiesced
admin_q while reset ctrl, so the request maked as idle and will not process
before reset success. As fabric_q shares tagset with admin_q, while
reconnect remote target, we need a tag for connect command, but the only
one reserved tag was held by keep alive command which waiting inside
admin_q. As a result, we failed to reconnect admin_q forever. In order to
fix this issue, I think we should keep two reserved tags for admin queue.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < 6.8.0-35.35 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | < 6.8.0-1009.9 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-azure | < 6.8.0-1008.8 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure-5.15 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure-6.5 | < any | UNKNOWN |
git.kernel.org/linus/de105068fead55ed5c07ade75e9c8e7f86a00d1d (6.9-rc1)
git.kernel.org/stable/c/149afee5c7418ec5db9d7387b9c9a5c1eb7ea2a8
git.kernel.org/stable/c/262da920896e2f2ab0e3947d9dbee0aa09045818
git.kernel.org/stable/c/6851778504cdb49431809b4ba061903d5f592c96
git.kernel.org/stable/c/de105068fead55ed5c07ade75e9c8e7f86a00d1d
git.kernel.org/stable/c/ff2f90f88d78559802466ad1c84ac5bda4416b3a
launchpad.net/bugs/cve/CVE-2024-27435
nvd.nist.gov/vuln/detail/CVE-2024-27435
security-tracker.debian.org/tracker/CVE-2024-27435
ubuntu.com/security/notices/USN-6816-1
ubuntu.com/security/notices/USN-6817-1
ubuntu.com/security/notices/USN-6817-2
ubuntu.com/security/notices/USN-6817-3
ubuntu.com/security/notices/USN-6878-1
www.cve.org/CVERecord?id=CVE-2024-27435