CVE-2026-90347
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
arm64: ptrace: Keep 'orig_x0' in-sync with x0 on syscall entry
In the Linux kernel, the following vulnerability has been resolved: arm64: ptrace: Keep 'orig_x0' in-sync with x0 on syscall entry Commit e057b9477232 ("arm64: syscall: Ensure saved x0 is kept in-sync with tracer updates") attempted to resolve a long-standing issue with syscall entry tracing, where a tracer is able to manipulate the first syscall argument without being subjected to seccomp or audit checking. Unfortunately, that fix was incomplete [1], as it failed to update 'orig_x0' between a tracer updating x0 during a seccomp ptrace exit (SECCOMP_RET_TRACE) and the seccomp filter being re-evaluated. Rather than add hooks to the core seccomp code, instead move the synchronisation code into the ptrace GPR and syscall setting code so that 'orig_x0' is kept up to date with x0 whenever we're stopped on the syscall entry path.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| a5cd110cb8369d6b37ef5ccfe56b3fa1338c9615 | affected | git | 332c9c1a148d0425326989c1187face8f6b2a60c | Unavailable | None listed |
| a5cd110cb8369d6b37ef5ccfe56b3fa1338c9615 | affected | git | ce17c651a90e242ad48df0df89b1e4cebcda5e14 | Unavailable | None listed |
| a5cd110cb8369d6b37ef5ccfe56b3fa1338c9615 | affected | git | e9e2854fcff5733ffc607e8ecc87e0e591ab41fd | Unavailable | None listed |
| a5cd110cb8369d6b37ef5ccfe56b3fa1338c9615 | affected | git | f433869f23841a50455c4087d85540d5b4d37cde | Unavailable | None listed |
| a5cd110cb8369d6b37ef5ccfe56b3fa1338c9615 | affected | git | 88b839ce497ccb1ff92f7ae742c78dd2937ba572 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.8 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.114 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.57 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |