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TI-2026-18427 Aliases CVE-2026-22990GHSA-ff5w-pjxm-v3rr

libceph: replace overzealous BUG_ON in osdmap_apply_incremental()

Priority LOW 39CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 38 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

In the Linux kernel, the following vulnerability has been resolved: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() If the osdmap is (maliciously) corrupted such that the incremental osdmap epoch is different from what is expected, there is no need to BUG. Instead, just declare the incremental osdmap to be invalid.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00403 34th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.248, 5.15.198, 6.1.161 +4Red Hat: 12 advisoriesRed Hat: 38 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux2.6.34 and later5.10.248, 5.15.198, 6.1.161, 6.6.121, 6.12.66, 6.18.6, 6.19Patch availableCNA
  • Linux VendorLinux Affected 2.6.34 and later Fixed in 5.10.248, 5.15.198, 6.1.161, 6.6.121, 6.12.66, 6.18.6, 6.19 Patch available CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*2.6.34.1 to before 5.10.248; 5.11 to before 5.15.198; 5.16 to before 6.1.161; 6.2 to before 6.6.121; 6.7 to before 6.12.66; 6.13 to before 6.18.6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.34:-:*:*:*:*:*:*2.6.34VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.34:rc2:*:*:*:*:*:*2.6.34 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.34:rc3:*:*:*:*:*:*2.6.34 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.34:rc4:*:*:*:*:*:*2.6.34 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.34:rc5:*:*:*:*:*:*2.6.34 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.34:rc6:*:*:*:*:*:*2.6.34 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.34:rc7:*:*:*:*:*:*2.6.34 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*6.19 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*6.19 rc2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.34.1 to before 5.10.248; 5.11 to before 5.15.198; 5.16 to before 6.1.161; 6.2 to before 6.6.121; 6.7 to before 6.12.66; 6.13 to before 6.18.6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.34:-:*:*:*:*:*:* Versions 2.6.34 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.34:rc2:*:*:*:*:*:* Versions 2.6.34 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.34:rc3:*:*:*:*:*:* Versions 2.6.34 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.34:rc4:*:*:*:*:*:* Versions 2.6.34 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.34:rc5:*:*:*:*:*:* Versions 2.6.34 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.34:rc6:*:*:*:*:*:* Versions 2.6.34 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.34:rc7:*:*:*:*:*:* Versions 2.6.34 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:* Versions 6.19 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:* Versions 6.19 rc2 Vulnerable ·Linux
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*6.19 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*6.19 rc4VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:* Versions 6.19 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:* Versions 6.19 rc4 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.10.248, 5.15.198, 6.1.161, 6.6.121, 6.12.66, 6.18.6, 6.19

Red Hat 12 advisories

  • RHSA-2026:71602 Released 2026-09-24 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.60.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.60.1.el10_2, kernel-64k-devel-6.12.0-211.60.1.el10_2 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.60.1.el10_2, kernel-64k-6.12.0-211.60.1.el10_2, kernel-64k-core-6.12.0-211.60.1.el10_2 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.60.1.el10_2, libperf-6.12.0-211.60.1.el10_2
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.60.1.el10_2, kernel-rt-64k-6.12.0-211.60.1.el10_2, kernel-rt-64k-core-6.12.0-211.60.1.el10_2 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.60.1.el10_2, kernel-rt-core-6.12.0-211.60.1.el10_2, kernel-rt-debug-6.12.0-211.60.1.el10_2 +9
  • RHSA-2026:52764 Released 2026-08-10 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.95.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.95.1.el10_0, kernel-64k-devel-6.12.0-55.95.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.95.1.el10_0, kernel-64k-6.12.0-55.95.1.el10_0, kernel-64k-core-6.12.0-55.95.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.95.1.el10_0, libperf-6.12.0-55.95.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.95.1.el10_0, kernel-rt-64k-6.12.0-55.95.1.el10_0, kernel-rt-64k-core-6.12.0-55.95.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.95.1.el10_0, kernel-rt-core-6.12.0-55.95.1.el10_0, kernel-rt-debug-6.12.0-55.95.1.el10_0 +11
  • RHSA-2026:35896 Released 2026-07-06 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.197.1.el8_4, kernel-4.18.0-305.197.1.el8_4, kernel-abi-stablelists-4.18.0-305.197.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.197.1.el8_4, kernel-4.18.0-305.197.1.el8_4, kernel-abi-stablelists-4.18.0-305.197.1.el8_4 +14
Show 9 more Red Hat advisories
  • RHSA-2026:33899 Released 2026-07-01 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.198.1.el8_6, kernel-4.18.0-372.198.1.el8_6, kernel-abi-stablelists-4.18.0-372.198.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) bpftool-4.18.0-372.198.1.el8_6, kernel-4.18.0-372.198.1.el8_6, kernel-abi-stablelists-4.18.0-372.198.1.el8_6 +14
  • RHSA-2026:27735 Released 2026-06-22 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) kernel-64k-debug-devel-5.14.0-427.132.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.132.1.el9_4, kernel-64k-devel-5.14.0-427.132.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool-7.3.0-427.132.1.el9_4, kernel-5.14.0-427.132.1.el9_4, kernel-64k-5.14.0-427.132.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt-5.14.0-427.132.1.el9_4, kernel-rt-core-5.14.0-427.132.1.el9_4, kernel-rt-debug-5.14.0-427.132.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt-5.14.0-427.132.1.el9_4, kernel-rt-core-5.14.0-427.132.1.el9_4, kernel-rt-debug-5.14.0-427.132.1.el9_4 +11
  • RHSA-2026:26563 Released 2026-06-17 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.147.1.el8_8, kernel-4.18.0-477.147.1.el8_8, kernel-abi-stablelists-4.18.0-477.147.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.147.1.el8_8, kernel-4.18.0-477.147.1.el8_8, kernel-abi-stablelists-4.18.0-477.147.1.el8_8 +14
  • RHSA-2026:26515 Released 2026-06-17 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.176.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.176.1.el9_2, kernel-64k-devel-5.14.0-284.176.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.176.1.el9_2, kernel-5.14.0-284.176.1.el9_2, kernel-64k-5.14.0-284.176.1.el9_2 +29
  • RHSA-2026:26462 Released 2026-06-17 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-core-5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-5.14.0-284.176.1.rt14.461.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-core-5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-5.14.0-284.176.1.rt14.461.el9_2 +11
  • RHSA-2026:25218 Released 2026-06-11 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.120.1.el9_6, libperf-5.14.0-570.120.1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.120.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.120.1.el9_6, kernel-64k-devel-5.14.0-570.120.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.120.1.el9_6, kernel-64k-5.14.0-570.120.1.el9_6, kernel-64k-core-5.14.0-570.120.1.el9_6 +28
    • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.120.1.el9_6, kernel-rt-64k-5.14.0-570.120.1.el9_6, kernel-rt-64k-core-5.14.0-570.120.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.120.1.el9_6, kernel-rt-core-5.14.0-570.120.1.el9_6, kernel-rt-debug-5.14.0-570.120.1.el9_6 +11
  • RHSA-2026:25121 Released 2026-06-10 · Red Hat rating Critical
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.132.1.el8_10, kernel-4.18.0-553.132.1.el8_10, kernel-abi-stablelists-4.18.0-553.132.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.132.1.el8_10
  • RHSA-2026:25120 Released 2026-06-10 · Red Hat rating Critical
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-core-4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-debug-4.18.0-553.132.1.rt7.473.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-core-4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-debug-4.18.0-553.132.1.rt7.473.el8_10 +7
  • RHSA-2026:19568 Released 2026-05-20 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-687.10.1.el9_8, kernel-64k-debug-devel-matched-5.14.0-687.10.1.el9_8, kernel-64k-devel-5.14.0-687.10.1.el9_8 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-687.10.1.el9_8, kernel-64k-5.14.0-687.10.1.el9_8, kernel-64k-core-5.14.0-687.10.1.el9_8 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-687.10.1.el9_8, libperf-5.14.0-687.10.1.el9_8
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-687.10.1.el9_8, kernel-rt-64k-5.14.0-687.10.1.el9_8, kernel-rt-64k-core-5.14.0-687.10.1.el9_8 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-687.10.1.el9_8, kernel-rt-core-5.14.0-687.10.1.el9_8, kernel-rt-debug-5.14.0-687.10.1.el9_8 +9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:25218
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:19568
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:26515
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:27735
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:52764
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:25218
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2026:25121
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:19568
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2026:35896
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2026:33899
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2026:26563
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2026:26515
Red Hat Enterprise Linux BaseOS E4S (v.9.4)Fixed RHSA-2026:27735
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:52764
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:25218
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2026:35896
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)Fixed RHSA-2026:33899
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2026:26563
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:25121
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:19568
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:52764
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2026:25120
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2026:25120
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2026:19568
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2026:26462
Red Hat Enterprise Linux Real Time E4S (v.9.4)Fixed RHSA-2026:27735
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2026:52764
Red Hat Enterprise Linux Real Time EUS (v.9.6)Fixed RHSA-2026:25218
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2026:19568
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2026:26462
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)Fixed RHSA-2026:27735
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2026:52764
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)Fixed RHSA-2026:25218
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-22990
  2. 2026-10-03 Alias added: GHSA-ff5w-pjxm-v3rr
  3. 2026-10-19 Weakness changed · CISA ADP

References

Patch 7

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences