CVE-2019-19602
fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of…
Does this matter?
Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own.
Description
fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
- EPSS
- 0.61% probability · 49th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- linux/linux kernel · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 0.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugzilla.kernel.org/show_bug.cgi?id=205663Issue Tracking, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c4bd853abcea95eccc167a7d7fd5f1a5f47b98Exploit, Vendor Advisory
- https://github.com/golang/go/issues/35777#issuecomment-561935388Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/59c4bd853abcea95eccc167a7d7fd5f1a5f47b98Exploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4284-1/Third Party Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=205663Issue Tracking, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c4bd853abcea95eccc167a7d7fd5f1a5f47b98Exploit, Vendor Advisory
- https://github.com/golang/go/issues/35777#issuecomment-561935388Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/59c4bd853abcea95eccc167a7d7fd5f1a5f47b98Exploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4284-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.