net/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18, 6.18.34, 7.0.11
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA mlx5e_xfrm_add_state() handles acquire-flow temporary SAs by allocating software state and skipping hardware offload setup. That path jumps to the common success label before taking the eswitch mode block. After tunnel-mode validation was moved earlier, the common success label unconditionally calls mlx5_eswitch_unblock_mode(). For acquire SAs, this decrements esw->offloads.num_block_mode without a matching increment. Return directly after installing the acquire SA offload handle, so only the paths that successfully called mlx5_eswitch_block_mode() call the matching unblock.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 22239eb258bc1e6ccdb2d3502fce1cc2b2a88386 · fixed in b5bd4249e430f5963d559708ee96a671716d2400; From 22239eb258bc1e6ccdb2d3502fce1cc2b2a88386 · fixed in ecafd8284e527666e83261e6e57a7c7341d591cb; From 22239eb258bc1e6ccdb2d3502fce1cc2b2a88386 · fixed in abe003b33223ff33552f291644bf35d9c2f992fb; From 6.17.4 · fixed in 6.18
- Linux Linux
6.18
- KernelLinux
From 6.18.0 · fixed in 6.18.34; From 6.19.0 · fixed in 7.0.11