# CVE-2026-52956: kernel-default: libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() (bsc#1269172).

CVE-2026-52956 is fixed in 65 products on 1 platform, first by DEBIAN-CVE-2026-52956, released June 25, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-52956
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0061
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 24, 2026

## Description

libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() (bsc#1269172).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | dtb-aarch64 opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-64kb opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-64kb sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-64kb sles 16.0 | 6.12.0-160000.37.1 | [SUSE-SU-2026:23231-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23231-1.md) | Aug 11, 2026 |
| Linux | kernel-azure opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-azure sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-azure sles 16.0 | 6.12.0-160000.37.1 | [SUSE-SU-2026:23231-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23231-1.md) | Aug 11, 2026 |
| Linux | kernel-default opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-default sles 15.6 | 6.4.0-150600.23.125.1 | [SUSE-SU-2026:3156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3156-1.md) | Jul 21, 2026 |
| Linux | kernel-default sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-default sles 16.0 | 6.12.0-160000.37.1 | [SUSE-SU-2026:23237-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23237-1.md) | Aug 11, 2026 |
| Linux | kernel-default-base opensuse-leap 16.0 | 6.12.0-160000.37.1.160000.2.19 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-default-base sles 15.6 | 6.4.0-150600.23.125.1.150600.12.58.3 | [SUSE-SU-2026:3156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3156-1.md) | Jul 21, 2026 |
| Linux | kernel-default-base sles 15.7 | 6.4.0-150700.53.73.2.150700.17.41.4 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-default-base sles 16.0 | 6.12.0-160000.37.1.160000.2.19 | [SUSE-SU-2026:23231-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23231-1.md) | Aug 11, 2026 |
| Linux | kernel-docs opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-docs sles 15.6 | 6.4.0-150600.23.125.1 | [SUSE-SU-2026:3156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3156-1.md) | Jul 21, 2026 |
| Linux | kernel-docs sles 15.7 | 6.4.0-150700.53.73.1 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-docs sles 16.0 | 6.12.0-160000.37.1 | [SUSE-SU-2026:23231-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23231-1.md) | Aug 11, 2026 |
| Linux | kernel-kvmsmall opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-kvmsmall sles 16.0 | 6.12.0-160000.37.1 | [SUSE-SU-2026:23231-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23231-1.md) | Aug 11, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_14 sles 15.6 | 16-150600.2.1 | [SUSE-SU-2026:3726-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3726-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_15 sles 15.6 | 16-150600.2.1 | [SUSE-SU-2026:3754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3754-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_16 sles 15.6 | 13-150600.2.1 | [SUSE-SU-2026:3704-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3704-1.md) | Aug 23, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_18 sles 15.6 | 11-150600.2.1 | [SUSE-SU-2026:3748-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3748-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_20 sles 15.6 | 10-150600.2.1 | [SUSE-SU-2026:3719-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3719-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_24 sles 15.6 | 6-150600.2.1 | [SUSE-SU-2026:3761-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3761-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_25 sles 15.6 | 5-150600.2.1 | [SUSE-SU-2026:3760-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3760-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_26 sles 15.6 | 5-150600.2.1 | [SUSE-SU-2026:3775-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3775-1.md) | Aug 25, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_27 sles 15.6 | 4-150600.2.1 | [SUSE-SU-2026:3776-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3776-1.md) | Aug 25, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_28 sles 15.6 | 4-150600.2.1 | [SUSE-SU-2026:3777-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3777-1.md) | Aug 25, 2026 |
| Linux | kernel-livepatch-SLE15-SP6_Update_29 sles 15.6 | 1-150600.13.7.1 | [SUSE-SU-2026:3156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3156-1.md) | Jul 21, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_10 sles 15.7 | 8-150700.2.1 | [SUSE-SU-2026:3696-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3696-1.md) | Aug 22, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_12 sles 15.7 | 7-150700.2.1 | [SUSE-SU-2026:3746-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3746-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_13 sles 15.7 | 6-150700.2.1 | [SUSE-SU-2026:3698-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3698-1.md) | Aug 22, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_14 sles 15.7 | 5-150700.2.1 | [SUSE-SU-2026:3694-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3694-1.md) | Aug 22, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_15 sles 15.7 | 4-150700.2.1 | [SUSE-SU-2026:3699-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3699-1.md) | Aug 22, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_16 sles 15.7 | 4-150700.2.1 | [SUSE-SU-2026:3700-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3700-1.md) | Aug 22, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_17 sles 15.7 | 3-150700.2.1 | [SUSE-SU-2026:3701-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3701-1.md) | Aug 22, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_18 sles 15.7 | 1-150700.1.5.1 | [SUSE-SU-2026:3130-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3130-1.md) | Jul 20, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_3 sles 15.7 | 16-150700.2.1 | [SUSE-SU-2026:3689-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3689-1.md) | Aug 22, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_7 sles 15.7 | 11-150700.2.1 | [SUSE-SU-2026:3697-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3697-1.md) | Aug 22, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_8 sles 15.7 | 11-150700.2.1 | [SUSE-SU-2026:3748-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3748-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_10 sles 15.7 | 8-150700.2.1 | [SUSE-SU-2026:3771-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3771-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_11 sles 15.7 | 8-150700.2.1 | [SUSE-SU-2026:3770-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3770-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_14 sles 15.7 | 5-150700.2.1 | [SUSE-SU-2026:3774-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3774-1.md) | Aug 25, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_15 sles 15.7 | 4-150700.2.1 | [SUSE-SU-2026:3779-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3779-1.md) | Aug 25, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_16 sles 15.7 | 4-150700.2.1 | [SUSE-SU-2026:3778-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3778-1.md) | Aug 25, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_17 sles 15.7 | 3-150700.2.1 | [SUSE-SU-2026:3780-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3780-1.md) | Aug 25, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_18 sles 15.7 | 3-150700.2.1 | [SUSE-SU-2026:3781-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3781-1.md) | Aug 25, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_19 sles 15.7 | 1-150700.15.3.4 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_3 sles 15.7 | 16-150700.2.1 | [SUSE-SU-2026:3726-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3726-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_4 sles 15.7 | 16-150700.2.1 | [SUSE-SU-2026:3754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3754-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_6 sles 15.7 | 11-150700.2.1 | [SUSE-SU-2026:3704-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3704-1.md) | Aug 23, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_7 sles 15.7 | 11-150700.2.1 | [SUSE-SU-2026:3768-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3768-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_8 sles 15.7 | 11-150700.2.1 | [SUSE-SU-2026:3761-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3761-1.md) | Aug 24, 2026 |
| Linux | kernel-livepatch-SLE16_Update_0 sles 16.0 | 17-160000.4.3 | [SUSE-SU-2026:23341-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23341-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_1 sles 16.0 | 15-160000.1.1 | [SUSE-SU-2026:23343-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23343-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_10 sles 16.0 | 6-160000.1.1 | [SUSE-SU-2026:23332-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23332-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_11 sles 16.0 | 6-160000.1.1 | [SUSE-SU-2026:23331-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23331-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_12 sles 16.0 | 4-160000.1.1 | [SUSE-SU-2026:23330-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23330-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_13 sles 16.0 | 4-160000.1.2 | [SUSE-SU-2026:23329-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23329-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_14 sles 16.0 | 4-160000.1.1 | [SUSE-SU-2026:23342-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23342-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_15 sles 16.0 | 2-160000.1.1 | [SUSE-SU-2026:23328-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23328-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_2 sles 16.0 | 13-160000.1.1 | [SUSE-SU-2026:23340-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23340-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_3 sles 16.0 | 12-160000.1.1 | [SUSE-SU-2026:23339-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23339-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_4 sles 16.0 | 11-160000.1.1 | [SUSE-SU-2026:23338-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23338-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_5 sles 16.0 | 10-160000.1.1 | [SUSE-SU-2026:23337-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23337-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_6 sles 16.0 | 9-160000.1.1 | [SUSE-SU-2026:23336-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23336-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_7 sles 16.0 | 8-160000.1.1 | [SUSE-SU-2026:23335-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23335-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_8 sles 16.0 | 7-160000.1.1 | [SUSE-SU-2026:23334-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23334-1.md) | Aug 26, 2026 |
| Linux | kernel-livepatch-SLE16_Update_9 sles 16.0 | 6-160000.1.1 | [SUSE-SU-2026:23333-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23333-1.md) | Aug 26, 2026 |
| Linux | kernel-obs-build opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-obs-build sles 15.6 | 6.4.0-150600.23.125.1 | [SUSE-SU-2026:3156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3156-1.md) | Jul 21, 2026 |
| Linux | kernel-obs-build sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-obs-qa opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-obs-qa sles 16.0 | 6.12.0-160000.37.1 | [SUSE-SU-2026:23231-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23231-1.md) | Aug 11, 2026 |
| Linux | kernel-rt opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-source opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-source sles 15.6 | 6.4.0-150600.23.125.1 | [SUSE-SU-2026:3156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3156-1.md) | Jul 21, 2026 |
| Linux | kernel-source sles 15.7 | 6.4.0-150700.53.73.1 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-source sles 16.0 | 6.12.0-160000.37.1 | [SUSE-SU-2026:23231-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23231-1.md) | Aug 11, 2026 |
| Linux | kernel-syms opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-syms sles 15.6 | 6.4.0-150600.23.125.1 | [SUSE-SU-2026:3156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3156-1.md) | Jul 21, 2026 |
| Linux | kernel-syms sles 15.7 | 6.4.0-150700.53.73.1 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-syms sles 16.0 | 6.12.0-160000.37.1 | [SUSE-SU-2026:23231-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23231-1.md) | Aug 11, 2026 |
| Linux | kernel-zfcpdump opensuse-leap 16.0 | 6.12.0-160000.37.1 | [OPENSUSE-SU-2026:21555-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21555-1.md) | Aug 12, 2026 |
| Linux | kernel-zfcpdump sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-zfcpdump sles 16.0 | 6.12.0-160000.37.1 | [SUSE-SU-2026:23231-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23231-1.md) | Aug 11, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.115-2 | [DEBIAN-CVE-2026-52956](https://patchblox.com/security/data/fix/linux/debian-cve-2026-52956.md) | Jun 25, 2026 |
| Linux | linux Debian 14 | 7.0.10-1 | [DEBIAN-CVE-2026-52956](https://patchblox.com/security/data/fix/linux/debian-cve-2026-52956.md) | Jun 25, 2026 |

---

Data as of 2026-11-11T07:45:43Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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