CVE-2023-54180 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2023-54180 Interim 1 1 2026-03-05T03:04:10Z current 2026-03-05T03:04:10Z 2026-03-05T03:04:10Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2023-54180 In the Linux kernel, the following vulnerability has been resolved: btrfs: handle case when repair happens with dev-replace [BUG] There is a bug report that a BUG_ON() in btrfs_repair_io_failure() (originally repair_io_failure() in v6.0 kernel) got triggered when replacing a unreliable disk: BTRFS warning (device sda1): csum failed root 257 ino 2397453 off 39624704 csum 0xb0d18c75 expected csum 0x4dae9c5e mirror 3 kernel BUG at fs/btrfs/extent_io.c:2380! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 9 PID: 3614331 Comm: kworker/u257:2 Tainted: G OE 6.0.0-5-amd64 #1 Debian 6.0.10-2 Hardware name: Micro-Star International Co., Ltd. MS-7C60/TRX40 PRO WIFI (MS-7C60), BIOS 2.70 07/01/2021 Workqueue: btrfs-endio btrfs_end_bio_work [btrfs] RIP: 0010:repair_io_failure+0x24a/0x260 [btrfs] Call Trace: <TASK> clean_io_failure+0x14d/0x180 [btrfs] end_bio_extent_readpage+0x412/0x6e0 [btrfs] ? __switch_to+0x106/0x420 process_one_work+0x1c7/0x380 worker_thread+0x4d/0x380 ? rescuer_thread+0x3a0/0x3a0 kthread+0xe9/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 [CAUSE] Before the BUG_ON(), we got some read errors from the replace target first, note the mirror number (3, which is beyond RAID1 duplication, thus it's read from the replace target device). Then at the BUG_ON() location, we are trying to writeback the repaired sectors back the failed device. The check looks like this: ret = btrfs_map_block(fs_info, BTRFS_MAP_WRITE, logical, &map_length, &bioc, mirror_num); if (ret) goto out_counter_dec; BUG_ON(mirror_num != bioc->mirror_num); But inside btrfs_map_block(), we can modify bioc->mirror_num especially for dev-replace: if (dev_replace_is_ongoing && mirror_num == map->num_stripes + 1 && !need_full_stripe(op) && dev_replace->tgtdev != NULL) { ret = get_extra_mirror_from_replace(fs_info, logical, *length, dev_replace->srcdev->devid, &mirror_num, &physical_to_patch_in_first_stripe); patch_the_first_stripe_for_dev_replace = 1; } Thus if we're repairing the replace target device, we're going to trigger that BUG_ON(). But in reality, the read failure from the replace target device may be that, our replace hasn't reached the range we're reading, thus we're reading garbage, but with replace running, the range would be properly filled later. Thus in that case, we don't need to do anything but let the replace routine to handle it. [FIX] Instead of a BUG_ON(), just skip the repair if we're repairing the device replace target device. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings SLES-LTSS-TERADATA 15 SP2 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Workstation Extension 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Linux Enterprise Workstation Extension 15 SP7 SUSE Linux Enterprise High Availability Extension 15 SP3 SUSE Linux Enterprise High Availability Extension 15 SP6 SUSE Linux Enterprise High Availability Extension 15 SP7 SUSE Linux Enterprise High Availability Extension 16.0 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Legacy 15 SP6 SUSE Linux Enterprise Module for Public Cloud 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Linux Enterprise Module for Legacy 15 SP7 SUSE Linux Enterprise Module for Public Cloud 15 SP7 SUSE Linux Enterprise Live Patching 12 SP5 SUSE Linux Enterprise Live Patching 15 SP3 SUSE Linux Enterprise Live Patching 15 SP4 SUSE Linux Enterprise Live Patching 15 SP5 SUSE Linux Enterprise Live Patching 15 SP6 SUSE Linux Enterprise Live Patching 15 SP7 SUSE Linux Enterprise Micro 5.0 SUSE Linux Enterprise Micro 5.1 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Micro 5.3 SUSE Linux Enterprise Micro 5.4 SUSE Linux Enterprise Micro 5.5 SUSE Real Time Module 15 SP6 SUSE Real Time Module 15 SP7 SUSE Linux Enterprise Server 11 SP4 LTSS SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE SUSE Linux Enterprise Server 12 SP2-LTSS SUSE Linux Enterprise Server 12 SP4-LTSS SUSE Linux Enterprise Server 12 SP5-LTSS SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security SUSE Linux Enterprise Server 15 SP1-LTSS SUSE Linux Enterprise Server 15 SP2-LTSS SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Legacy 15 SP6 SUSE Linux Enterprise Module for Public Cloud 15 SP6 SUSE Linux Enterprise Workstation Extension 15 SP6 SUSE Linux Enterprise Server 15 SP6-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Linux Enterprise Module for Legacy 15 SP7 SUSE Linux Enterprise Module for Public Cloud 15 SP7 SUSE Linux Enterprise Workstation Extension 15 SP7 SUSE Linux Enterprise Server 15-LTSS 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a component of SUSE Manager Proxy LTS 4.3 kernel-macros as a component of SUSE Manager Proxy LTS 4.3 kernel-source as a component of SUSE Manager Proxy LTS 4.3 kernel-default as a component of SUSE Manager Retail Branch Server LTS 4.3 kernel-default-devel as a component of SUSE Manager Retail Branch Server LTS 4.3 kernel-devel as a component of SUSE Manager Retail Branch Server LTS 4.3 kernel-macros as a component of SUSE Manager Retail Branch Server LTS 4.3 kernel-source as a component of SUSE Manager Retail Branch Server LTS 4.3 kernel-default as a component of SUSE Manager Server LTS 4.3 kernel-default-devel as a component of SUSE Manager Server LTS 4.3 kernel-devel as a component of SUSE Manager Server LTS 4.3 kernel-macros as a component of SUSE Manager Server LTS 4.3 kernel-source as a component of SUSE Manager Server LTS 4.3 kernel-devel-rt as a component of SUSE Real Time Module 15 SP6 kernel-source-rt as a component of SUSE Real Time Module 15 SP6 kernel-devel-rt as a component of SUSE Real Time Module 15 SP7 kernel-source-rt as a component of SUSE Real Time Module 15 SP7 cluster-md-kmp-default as a component of openSUSE Leap 15.6 dlm-kmp-default as a component of openSUSE Leap 15.6 gfs2-kmp-default as a component of openSUSE Leap 15.6 kernel-default as a component of openSUSE Leap 15.6 kernel-default-devel as a component of openSUSE Leap 15.6 kernel-default-extra as a component of openSUSE Leap 15.6 kernel-default-livepatch as a component of openSUSE Leap 15.6 kernel-default-livepatch-devel as a component of openSUSE Leap 15.6 kernel-default-optional as a component of openSUSE Leap 15.6 kernel-default-vdso as a component of openSUSE Leap 15.6 kselftests-kmp-default as a component of openSUSE Leap 15.6 ocfs2-kmp-default as a component of openSUSE Leap 15.6 reiserfs-kmp-default as a component of openSUSE Leap 15.6 kernel-devel as a component of openSUSE Leap 15.6 kernel-macros as a component of openSUSE Leap 15.6 kernel-source as a component of openSUSE Leap 15.6 kernel-source-vanilla as a component of openSUSE Leap 15.6 kernel-devel-azure as a component of openSUSE Leap 15.6 kernel-source-azure as a component of openSUSE Leap 15.6 kernel-devel-rt as a component of openSUSE Leap 15.6 kernel-source-rt as a component of openSUSE Leap 15.6 In the Linux kernel, the following vulnerability has been resolved: btrfs: handle case when repair happens with dev-replace [BUG] There is a bug report that a BUG_ON() in btrfs_repair_io_failure() (originally repair_io_failure() in v6.0 kernel) got triggered when replacing a unreliable disk: BTRFS warning (device sda1): csum failed root 257 ino 2397453 off 39624704 csum 0xb0d18c75 expected csum 0x4dae9c5e mirror 3 kernel BUG at fs/btrfs/extent_io.c:2380! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 9 PID: 3614331 Comm: kworker/u257:2 Tainted: G OE 6.0.0-5-amd64 #1 Debian 6.0.10-2 Hardware name: Micro-Star International Co., Ltd. MS-7C60/TRX40 PRO WIFI (MS-7C60), BIOS 2.70 07/01/2021 Workqueue: btrfs-endio btrfs_end_bio_work [btrfs] RIP: 0010:repair_io_failure+0x24a/0x260 [btrfs] Call Trace: <TASK> clean_io_failure+0x14d/0x180 [btrfs] end_bio_extent_readpage+0x412/0x6e0 [btrfs] ? __switch_to+0x106/0x420 process_one_work+0x1c7/0x380 worker_thread+0x4d/0x380 ? rescuer_thread+0x3a0/0x3a0 kthread+0xe9/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 [CAUSE] Before the BUG_ON(), we got some read errors from the replace target first, note the mirror number (3, which is beyond RAID1 duplication, thus it's read from the replace target device). Then at the BUG_ON() location, we are trying to writeback the repaired sectors back the failed device. The check looks like this: ret = btrfs_map_block(fs_info, BTRFS_MAP_WRITE, logical, &map_length, &bioc, mirror_num); if (ret) goto out_counter_dec; BUG_ON(mirror_num != bioc->mirror_num); But inside btrfs_map_block(), we can modify bioc->mirror_num especially for dev-replace: if (dev_replace_is_ongoing && mirror_num == map->num_stripes + 1 && !need_full_stripe(op) && dev_replace->tgtdev != NULL) { ret = get_extra_mirror_from_replace(fs_info, logical, *length, dev_replace->srcdev->devid, &mirror_num, &physical_to_patch_in_first_stripe); patch_the_first_stripe_for_dev_replace = 1; } Thus if we're repairing the replace target device, we're going to trigger that BUG_ON(). But in reality, the read failure from the replace target device may be that, our replace hasn't reached the range we're reading, thus we're reading garbage, but with replace running, the range would be properly filled later. Thus in that case, we don't need to do anything but let the replace routine to handle it. [FIX] Instead of a BUG_ON(), just skip the repair if we're repairing the device replace target device. CVE-2023-54180 SUSE Linux Enterprise High Availability Extension 15 SP6:kernel-default SUSE Linux Enterprise High Availability Extension 15 SP6:kernel-source SUSE Linux Enterprise High Availability Extension 15 SP7:cluster-md-kmp-default SUSE Linux Enterprise High Availability Extension 15 SP7:dlm-kmp-default SUSE Linux Enterprise High Availability Extension 15 SP7:gfs2-kmp-default SUSE Linux Enterprise High Availability Extension 15 SP7:kernel-default SUSE Linux Enterprise High Availability Extension 15 SP7:kernel-source SUSE Linux Enterprise High Availability Extension 15 SP7:ocfs2-kmp-default SUSE Linux Enterprise High Availability Extension 16.0:kernel-default SUSE Linux Enterprise High Availability Extension 16.0:kernel-source SUSE Linux Enterprise Live Patching 15 SP6:kernel-default SUSE Linux Enterprise Live Patching 15 SP6:kernel-default-livepatch SUSE Linux Enterprise Live Patching 15 SP6:kernel-default-livepatch-devel SUSE Linux Enterprise Live Patching 15 SP6:kernel-source 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Linux Enterprise Module for Development Tools 15 SP6:kernel-source SUSE Linux Enterprise Module for Development Tools 15 SP7:kernel-default SUSE Linux Enterprise Module for Development Tools 15 SP7:kernel-source SUSE Linux Enterprise Module for Legacy 15 SP6:kernel-default SUSE Linux Enterprise Module for Legacy 15 SP6:kernel-source SUSE Linux Enterprise Module for Legacy 15 SP6:reiserfs-kmp-default SUSE Linux Enterprise Module for Legacy 15 SP7:kernel-default SUSE Linux Enterprise Module for Legacy 15 SP7:kernel-source SUSE Linux Enterprise Module for Legacy 15 SP7:reiserfs-kmp-default SUSE Linux Enterprise Module for Public Cloud 15 SP6:kernel-devel-azure SUSE Linux Enterprise Module for Public Cloud 15 SP6:kernel-source-azure SUSE Linux Enterprise Module for Public Cloud 15 SP7:kernel-devel-azure SUSE Linux Enterprise Module for Public Cloud 15 SP7:kernel-source-azure SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:kernel-default SUSE Linux Enterprise Server 11 SP4 LTSS 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16.0:kernel-devel-azure SUSE Linux Enterprise Server 16.0:kernel-macros SUSE Linux Enterprise Server 16.0:kernel-source SUSE Linux Enterprise Server 16.0:kernel-source-azure SUSE Linux Enterprise Server 16.0:kernel-source-vanilla SUSE Linux Enterprise Server for SAP Applications 15 SP6:cluster-md-kmp-default SUSE Linux Enterprise Server for SAP Applications 15 SP6:dlm-kmp-default SUSE Linux Enterprise Server for SAP Applications 15 SP6:gfs2-kmp-default SUSE Linux Enterprise Server for SAP Applications 15 SP6:kernel-default SUSE Linux Enterprise Server for SAP Applications 15 SP6:kernel-default-devel SUSE Linux Enterprise Server for SAP Applications 15 SP6:kernel-devel SUSE Linux Enterprise Server for SAP Applications 15 SP6:kernel-macros SUSE Linux Enterprise Server for SAP Applications 15 SP6:kernel-source SUSE Linux Enterprise Server for SAP Applications 15 SP6:ocfs2-kmp-default SUSE Linux Enterprise Server for SAP Applications 15 SP6:reiserfs-kmp-default SUSE Linux Enterprise Server 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Micro 6.0:kernel-macros SUSE Linux Micro 6.0:kernel-source SUSE Linux Micro 6.0:kernel-source-rt SUSE Linux Micro 6.1:kernel-default SUSE Linux Micro 6.1:kernel-devel SUSE Linux Micro 6.1:kernel-devel-rt SUSE Linux Micro 6.1:kernel-macros SUSE Linux Micro 6.1:kernel-source SUSE Linux Micro 6.1:kernel-source-rt SUSE Linux Micro 6.2:kernel-default SUSE Linux Micro 6.2:kernel-devel SUSE Linux Micro 6.2:kernel-macros SUSE Linux Micro 6.2:kernel-source SUSE Real Time Module 15 SP6:kernel-devel-rt SUSE Real Time Module 15 SP6:kernel-source-rt SUSE Real Time Module 15 SP7:kernel-devel-rt SUSE Real Time Module 15 SP7:kernel-source-rt openSUSE Leap 15.6:cluster-md-kmp-default openSUSE Leap 15.6:dlm-kmp-default openSUSE Leap 15.6:gfs2-kmp-default openSUSE Leap 15.6:kernel-default openSUSE Leap 15.6:kernel-default-devel openSUSE Leap 15.6:kernel-default-extra openSUSE Leap 15.6:kernel-default-livepatch openSUSE Leap 15.6:kernel-default-livepatch-devel openSUSE Leap 15.6:kernel-default-optional openSUSE Leap 15.6:kernel-default-vdso openSUSE Leap 15.6:kernel-devel openSUSE Leap 15.6:kernel-devel-azure openSUSE Leap 15.6:kernel-devel-rt openSUSE Leap 15.6:kernel-macros openSUSE Leap 15.6:kernel-source openSUSE Leap 15.6:kernel-source-azure openSUSE Leap 15.6:kernel-source-rt openSUSE Leap 15.6:kernel-source-vanilla openSUSE Leap 15.6:kselftests-kmp-default openSUSE Leap 15.6:ocfs2-kmp-default openSUSE Leap 15.6:reiserfs-kmp-default low 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L