CVE-2022-48833 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2022-48833 Interim 1 8 2025-10-05T01:06:26Z current 2024-07-17T23:31:18Z 2025-10-05T01:06:26Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2022-48833 In the Linux kernel, the following vulnerability has been resolved: btrfs: skip reserved bytes warning on unmount after log cleanup failure After the recent changes made by commit c2e39305299f01 ("btrfs: clear extent buffer uptodate when we fail to write it") and its followup fix, commit 651740a5024117 ("btrfs: check WRITE_ERR when trying to read an extent buffer"), we can now end up not cleaning up space reservations of log tree extent buffers after a transaction abort happens, as well as not cleaning up still dirty extent buffers. This happens because if writeback for a log tree extent buffer failed, then we have cleared the bit EXTENT_BUFFER_UPTODATE from the extent buffer and we have also set the bit EXTENT_BUFFER_WRITE_ERR on it. Later on, when trying to free the log tree with free_log_tree(), which iterates over the tree, we can end up getting an -EIO error when trying to read a node or a leaf, since read_extent_buffer_pages() returns -EIO if an extent buffer does not have EXTENT_BUFFER_UPTODATE set and has the EXTENT_BUFFER_WRITE_ERR bit set. Getting that -EIO means that we return immediately as we can not iterate over the entire tree. In that case we never update the reserved space for an extent buffer in the respective block group and space_info object. When this happens we get the following traces when unmounting the fs: [174957.284509] BTRFS: error (device dm-0) in cleanup_transaction:1913: errno=-5 IO failure [174957.286497] BTRFS: error (device dm-0) in free_log_tree:3420: errno=-5 IO failure [174957.399379] ------------[ cut here ]------------ [174957.402497] WARNING: CPU: 2 PID: 3206883 at fs/btrfs/block-group.c:127 btrfs_put_block_group+0x77/0xb0 [btrfs] [174957.407523] Modules linked in: btrfs overlay dm_zero (...) [174957.424917] CPU: 2 PID: 3206883 Comm: umount Tainted: G W 5.16.0-rc5-btrfs-next-109 #1 [174957.426689] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [174957.428716] RIP: 0010:btrfs_put_block_group+0x77/0xb0 [btrfs] [174957.429717] Code: 21 48 8b bd (...) [174957.432867] RSP: 0018:ffffb70d41cffdd0 EFLAGS: 00010206 [174957.433632] RAX: 0000000000000001 RBX: ffff8b09c3848000 RCX: ffff8b0758edd1c8 [174957.434689] RDX: 0000000000000001 RSI: ffffffffc0b467e7 RDI: ffff8b0758edd000 [174957.436068] RBP: ffff8b0758edd000 R08: 0000000000000000 R09: 0000000000000000 [174957.437114] R10: 0000000000000246 R11: 0000000000000000 R12: ffff8b09c3848148 [174957.438140] R13: ffff8b09c3848198 R14: ffff8b0758edd188 R15: dead000000000100 [174957.439317] FS: 00007f328fb82800(0000) GS:ffff8b0a2d200000(0000) knlGS:0000000000000000 [174957.440402] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [174957.441164] CR2: 00007fff13563e98 CR3: 0000000404f4e005 CR4: 0000000000370ee0 [174957.442117] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [174957.443076] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [174957.443948] Call Trace: [174957.444264] <TASK> [174957.444538] btrfs_free_block_groups+0x255/0x3c0 [btrfs] [174957.445238] close_ctree+0x301/0x357 [btrfs] [174957.445803] ? call_rcu+0x16c/0x290 [174957.446250] generic_shutdown_super+0x74/0x120 [174957.446832] kill_anon_super+0x14/0x30 [174957.447305] btrfs_kill_super+0x12/0x20 [btrfs] [174957.447890] deactivate_locked_super+0x31/0xa0 [174957.448440] cleanup_mnt+0x147/0x1c0 [174957.448888] task_work_run+0x5c/0xa0 [174957.449336] exit_to_user_mode_prepare+0x1e5/0x1f0 [174957.449934] syscall_exit_to_user_mode+0x16/0x40 [174957.450512] do_syscall_64+0x48/0xc0 [174957.450980] entry_SYSCALL_64_after_hwframe+0x44/0xae [174957.451605] RIP: 0033:0x7f328fdc4a97 [174957.452059] Code: 03 0c 00 f7 (...) [174957.454320] RSP: 002b:00007fff13564ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [174957.455262] RAX: 0000000000000000 RBX: 00007f328feea264 RCX: 00007f328fdc4a97 [174957.456131] RDX: 0000000000000000 RSI: 00000000000000 ---truncated--- 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 SUSE Enterprise Storage 7.1 SUSE Linux Enterprise Module for Basesystem 15 SP5 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP5 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Module for Public Cloud 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Public Cloud 15 SP6 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 Linux Enterprise Real Time 12 SP5 SUSE Real Time Module 15 SP5 SUSE Real Time Module 15 SP6 SUSE Linux Enterprise Server 11 SP4 LTSS SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE SUSE Linux Enterprise Server 12 SP4-LTSS SUSE Linux Enterprise Server 12 SP5 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 Module for Basesystem 15 SP5 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Module for Public Cloud 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Public Cloud 15 SP6 SUSE Linux Enterprise Server 15-LTSS SUSE Linux Enterprise Server Teradata 12 SP3 SUSE Linux Enterprise Server Teradata 12 SP3-LTSS SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Module for Basesystem 15 SP5 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Module for Public Cloud 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Public Cloud 15 SP6 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3 openSUSE Leap 15.5 openSUSE Leap 15.6 cluster-md-kmp-default dlm-kmp-default gfs2-kmp-default kernel-default kernel-default-base kernel-default-devel kernel-default-extra kernel-default-livepatch kernel-default-livepatch-devel kernel-default-man kernel-default-optional kernel-default-vdso kernel-devel kernel-devel-azure kernel-devel-rt kernel-macros kernel-rt kernel-source kernel-source-azure kernel-source-rt kernel-source-vanilla kselftests-kmp-default ocfs2-kmp-default reiserfs-kmp-default kernel-default as a component of SUSE Enterprise Storage 7.1 kernel-default-devel as a component of SUSE Enterprise Storage 7.1 reiserfs-kmp-default as a component of SUSE Enterprise Storage 7.1 kernel-devel as a component of SUSE Enterprise Storage 7.1 kernel-macros as a component of SUSE Enterprise Storage 7.1 kernel-source as a component of SUSE Enterprise Storage 7.1 kernel-default as a component of SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source as a component of SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source-azure as a component of SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-default as a component of SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-default-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-macros as a component of SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-source as a component of SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-default as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-default-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS reiserfs-kmp-default as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-macros as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-source as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-default as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-default-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS reiserfs-kmp-default as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-macros as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-source as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-default as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-default-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS reiserfs-kmp-default as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-macros as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-source as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-default as a component of SUSE Linux Enterprise Micro 5.0 kernel-default as a component of SUSE Linux Enterprise Micro 5.1 kernel-rt as a component of SUSE Linux Enterprise Micro 5.1 kernel-source-rt as a component of SUSE Linux Enterprise Micro 5.1 kernel-default as a component of SUSE Linux Enterprise Micro 5.2 kernel-rt as a component of SUSE Linux Enterprise Micro 5.2 kernel-source-rt as a component of SUSE Linux Enterprise Micro 5.2 kernel-default as a component of SUSE Linux Enterprise Micro 5.3 kernel-rt as a component of SUSE Linux Enterprise Micro 5.3 kernel-source-rt as a component of SUSE Linux Enterprise Micro 5.3 kernel-default as a component of SUSE Linux Enterprise Micro 5.4 kernel-rt as a component of SUSE Linux Enterprise Micro 5.4 kernel-source-rt as a component of SUSE Linux Enterprise Micro 5.4 kernel-devel-rt as a component of SUSE Linux Enterprise Micro 5.5 kernel-source-rt as a component of SUSE Linux Enterprise Micro 5.5 kernel-default as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-default-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-macros as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-source as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-default as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-default-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-macros as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-source as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-default as a component of SUSE Linux Enterprise Module for Development Tools 15 SP5 kernel-source as a component of SUSE Linux Enterprise Module for Development Tools 15 SP5 kernel-default as a component of SUSE Linux Enterprise Module for Development Tools 15 SP6 kernel-source as a component of SUSE Linux Enterprise Module for Development Tools 15 SP6 kernel-devel-azure as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP5 kernel-source-azure as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP5 kernel-devel-azure as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP6 kernel-source-azure as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP6 kernel-devel-rt as a component of SUSE Linux Enterprise Real Time 12 SP5 kernel-source-rt as a component of SUSE Linux Enterprise Real Time 12 SP5 kernel-default as a component of SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source as a component of SUSE Linux Enterprise Server 11 SP4 LTSS kernel-default as a component of SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-default-base as a component of SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-default-devel as a component of SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-source as a component of SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-default as a component of SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default-base as a component of SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default-devel as a component of SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default-man as a component of SUSE Linux Enterprise Server 12 SP4-LTSS kernel-devel as a component of SUSE Linux Enterprise Server 12 SP4-LTSS kernel-macros as a component of SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source as a component of SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default as a component of SUSE Linux Enterprise Server 12 SP5 kernel-default-base as a component of SUSE Linux Enterprise Server 12 SP5 kernel-default-devel as a component of SUSE Linux Enterprise Server 12 SP5 kernel-default-man as a component of SUSE Linux Enterprise Server 12 SP5 kernel-devel as a component of SUSE Linux Enterprise Server 12 SP5 kernel-macros as a component of SUSE Linux Enterprise Server 12 SP5 kernel-source as a component of SUSE Linux Enterprise Server 12 SP5 kernel-devel-azure as a component of SUSE Linux Enterprise Server 12 SP5 kernel-source-azure as a component of SUSE Linux Enterprise Server 12 SP5 kernel-default as a component of SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default-base as a component of SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default-devel as a component of SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default-man as a component of SUSE Linux Enterprise Server 15 SP1-LTSS reiserfs-kmp-default as a component of SUSE Linux Enterprise Server 15 SP1-LTSS kernel-devel as a component of SUSE Linux Enterprise Server 15 SP1-LTSS kernel-macros as a component of SUSE Linux Enterprise Server 15 SP1-LTSS kernel-source as a component of SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default as a component of SUSE Linux Enterprise Server 15 SP2-LTSS kernel-default-devel as a component of SUSE Linux Enterprise Server 15 SP2-LTSS reiserfs-kmp-default as a component of SUSE Linux Enterprise Server 15 SP2-LTSS kernel-devel as a component of SUSE Linux Enterprise Server 15 SP2-LTSS kernel-macros as a component of SUSE Linux Enterprise Server 15 SP2-LTSS kernel-source as a component of SUSE Linux Enterprise Server 15 SP2-LTSS kernel-default as a component of SUSE Linux Enterprise Server 15 SP3-LTSS kernel-default-devel as a component of SUSE Linux Enterprise Server 15 SP3-LTSS reiserfs-kmp-default as a component of SUSE Linux Enterprise Server 15 SP3-LTSS kernel-devel as a component of SUSE Linux Enterprise Server 15 SP3-LTSS kernel-macros as a component of SUSE Linux Enterprise Server 15 SP3-LTSS kernel-source as a component of SUSE Linux Enterprise Server 15 SP3-LTSS kernel-default as a component of SUSE Linux Enterprise Server 15 SP4-LTSS kernel-default-devel as a component of SUSE Linux Enterprise Server 15 SP4-LTSS reiserfs-kmp-default as a component of SUSE Linux Enterprise Server 15 SP4-LTSS kernel-devel as a component of SUSE Linux Enterprise Server 15 SP4-LTSS kernel-macros as a component of SUSE Linux Enterprise Server 15 SP4-LTSS kernel-source as a component of SUSE Linux Enterprise Server 15 SP4-LTSS kernel-default as a component of SUSE Linux Enterprise Server 15-LTSS kernel-default-base as a component of SUSE Linux Enterprise Server 15-LTSS kernel-default-devel as a component of SUSE Linux Enterprise Server 15-LTSS kernel-default-man as a component of SUSE Linux Enterprise Server 15-LTSS reiserfs-kmp-default as a component of SUSE Linux Enterprise Server 15-LTSS kernel-devel as a component of SUSE Linux Enterprise Server 15-LTSS kernel-macros as a component of SUSE Linux Enterprise Server 15-LTSS kernel-source as a component of SUSE Linux Enterprise Server 15-LTSS kernel-default as a component of SUSE Linux Enterprise Server Teradata 12 SP3 kernel-source as a component of SUSE Linux Enterprise Server Teradata 12 SP3 kernel-default as a component of SUSE Linux Enterprise Server Teradata 12 SP3-LTSS kernel-source as a component of SUSE Linux Enterprise Server Teradata 12 SP3-LTSS kernel-default as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default-base as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default-devel as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-devel as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-macros as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source-azure as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-default as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-default-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP2 reiserfs-kmp-default as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-macros as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-default as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-default-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 reiserfs-kmp-default as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-macros as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-default as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-default-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 reiserfs-kmp-default as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-macros as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-source as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-default as a component of SUSE Manager Proxy 4.3 kernel-default-devel as a component of SUSE Manager Proxy 4.3 kernel-devel as a component of SUSE Manager Proxy 4.3 kernel-macros as a component of SUSE Manager Proxy 4.3 kernel-source as a component of SUSE Manager Proxy 4.3 kernel-default as a component of SUSE Manager Retail Branch Server 4.3 kernel-default-devel as a component of SUSE Manager Retail Branch Server 4.3 kernel-devel as a component of SUSE Manager Retail Branch Server 4.3 kernel-macros as a component of SUSE Manager Retail Branch Server 4.3 kernel-source as a component of SUSE Manager Retail Branch Server 4.3 kernel-default as a component of SUSE Manager Server 4.3 kernel-default-devel as a component of SUSE Manager Server 4.3 kernel-devel as a component of SUSE Manager Server 4.3 kernel-macros as a component of SUSE Manager Server 4.3 kernel-source as a component of SUSE Manager Server 4.3 kernel-devel-rt as a component of SUSE Real Time Module 15 SP5 kernel-source-rt as a component of SUSE Real Time Module 15 SP5 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 cluster-md-kmp-default as a component of openSUSE Leap 15.5 dlm-kmp-default as a component of openSUSE Leap 15.5 gfs2-kmp-default as a component of openSUSE Leap 15.5 kernel-default as a component of openSUSE Leap 15.5 kernel-default-devel as a component of openSUSE Leap 15.5 kernel-default-extra as a component of openSUSE Leap 15.5 kernel-default-livepatch as a component of openSUSE Leap 15.5 kernel-default-livepatch-devel as a component of openSUSE Leap 15.5 kernel-default-optional as a component of openSUSE Leap 15.5 kernel-default-vdso as a component of openSUSE Leap 15.5 kselftests-kmp-default as a component of openSUSE Leap 15.5 ocfs2-kmp-default as a component of openSUSE Leap 15.5 reiserfs-kmp-default as a component of openSUSE Leap 15.5 kernel-devel as a component of openSUSE Leap 15.5 kernel-macros as a component of openSUSE Leap 15.5 kernel-source as a component of openSUSE Leap 15.5 kernel-source-vanilla as a component of openSUSE Leap 15.5 kernel-devel-azure as a component of openSUSE Leap 15.5 kernel-source-azure as a component of openSUSE Leap 15.5 kernel-devel-rt as a component of openSUSE Leap 15.5 kernel-source-rt as a component of openSUSE Leap 15.5 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: skip reserved bytes warning on unmount after log cleanup failure After the recent changes made by commit c2e39305299f01 ("btrfs: clear extent buffer uptodate when we fail to write it") and its followup fix, commit 651740a5024117 ("btrfs: check WRITE_ERR when trying to read an extent buffer"), we can now end up not cleaning up space reservations of log tree extent buffers after a transaction abort happens, as well as not cleaning up still dirty extent buffers. This happens because if writeback for a log tree extent buffer failed, then we have cleared the bit EXTENT_BUFFER_UPTODATE from the extent buffer and we have also set the bit EXTENT_BUFFER_WRITE_ERR on it. Later on, when trying to free the log tree with free_log_tree(), which iterates over the tree, we can end up getting an -EIO error when trying to read a node or a leaf, since read_extent_buffer_pages() returns -EIO if an extent buffer does not have EXTENT_BUFFER_UPTODATE set and has the EXTENT_BUFFER_WRITE_ERR bit set. Getting that -EIO means that we return immediately as we can not iterate over the entire tree. In that case we never update the reserved space for an extent buffer in the respective block group and space_info object. When this happens we get the following traces when unmounting the fs: [174957.284509] BTRFS: error (device dm-0) in cleanup_transaction:1913: errno=-5 IO failure [174957.286497] BTRFS: error (device dm-0) in free_log_tree:3420: errno=-5 IO failure [174957.399379] ------------[ cut here ]------------ [174957.402497] WARNING: CPU: 2 PID: 3206883 at fs/btrfs/block-group.c:127 btrfs_put_block_group+0x77/0xb0 [btrfs] [174957.407523] Modules linked in: btrfs overlay dm_zero (...) [174957.424917] CPU: 2 PID: 3206883 Comm: umount Tainted: G W 5.16.0-rc5-btrfs-next-109 #1 [174957.426689] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [174957.428716] RIP: 0010:btrfs_put_block_group+0x77/0xb0 [btrfs] [174957.429717] Code: 21 48 8b bd (...) [174957.432867] RSP: 0018:ffffb70d41cffdd0 EFLAGS: 00010206 [174957.433632] RAX: 0000000000000001 RBX: ffff8b09c3848000 RCX: ffff8b0758edd1c8 [174957.434689] RDX: 0000000000000001 RSI: ffffffffc0b467e7 RDI: ffff8b0758edd000 [174957.436068] RBP: ffff8b0758edd000 R08: 0000000000000000 R09: 0000000000000000 [174957.437114] R10: 0000000000000246 R11: 0000000000000000 R12: ffff8b09c3848148 [174957.438140] R13: ffff8b09c3848198 R14: ffff8b0758edd188 R15: dead000000000100 [174957.439317] FS: 00007f328fb82800(0000) GS:ffff8b0a2d200000(0000) knlGS:0000000000000000 [174957.440402] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [174957.441164] CR2: 00007fff13563e98 CR3: 0000000404f4e005 CR4: 0000000000370ee0 [174957.442117] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [174957.443076] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [174957.443948] Call Trace: [174957.444264] <TASK> [174957.444538] btrfs_free_block_groups+0x255/0x3c0 [btrfs] [174957.445238] close_ctree+0x301/0x357 [btrfs] [174957.445803] ? call_rcu+0x16c/0x290 [174957.446250] generic_shutdown_super+0x74/0x120 [174957.446832] kill_anon_super+0x14/0x30 [174957.447305] btrfs_kill_super+0x12/0x20 [btrfs] [174957.447890] deactivate_locked_super+0x31/0xa0 [174957.448440] cleanup_mnt+0x147/0x1c0 [174957.448888] task_work_run+0x5c/0xa0 [174957.449336] exit_to_user_mode_prepare+0x1e5/0x1f0 [174957.449934] syscall_exit_to_user_mode+0x16/0x40 [174957.450512] do_syscall_64+0x48/0xc0 [174957.450980] entry_SYSCALL_64_after_hwframe+0x44/0xae [174957.451605] RIP: 0033:0x7f328fdc4a97 [174957.452059] Code: 03 0c 00 f7 (...) [174957.454320] RSP: 002b:00007fff13564ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [174957.455262] RAX: 0000000000000000 RBX: 00007f328feea264 RCX: 00007f328fdc4a97 [174957.456131] RDX: 0000000000000000 RSI: 00000000000000 ---truncated--- CVE-2022-48833 SUSE Enterprise Storage 7.1:kernel-default SUSE Enterprise Storage 7.1:kernel-default-devel SUSE Enterprise Storage 7.1:kernel-devel SUSE Enterprise Storage 7.1:kernel-macros SUSE Enterprise Storage 7.1:kernel-source SUSE Enterprise Storage 7.1:reiserfs-kmp-default SUSE Linux Enterprise High Performance Computing 12 SP5:kernel-default SUSE Linux Enterprise High Performance Computing 12 SP5:kernel-source SUSE Linux Enterprise High Performance Computing 12 SP5:kernel-source-azure SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:kernel-default SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:kernel-default-devel SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:kernel-devel SUSE Linux Enterprise High 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SP2:kernel-macros SUSE Linux Enterprise Server for SAP Applications 15 SP2:kernel-source SUSE Linux Enterprise Server for SAP Applications 15 SP2:reiserfs-kmp-default SUSE Linux Enterprise Server for SAP Applications 15 SP3:kernel-default SUSE Linux Enterprise Server for SAP Applications 15 SP3:kernel-default-devel SUSE Linux Enterprise Server for SAP Applications 15 SP3:kernel-devel SUSE Linux Enterprise Server for SAP Applications 15 SP3:kernel-macros SUSE Linux Enterprise Server for SAP Applications 15 SP3:kernel-source SUSE Linux Enterprise Server for SAP Applications 15 SP3:reiserfs-kmp-default SUSE Linux Enterprise Server for SAP Applications 15 SP4:kernel-default SUSE Linux Enterprise Server for SAP Applications 15 SP4:kernel-default-devel SUSE Linux Enterprise Server for SAP Applications 15 SP4:kernel-devel SUSE Linux Enterprise Server for SAP Applications 15 SP4:kernel-macros SUSE Linux Enterprise Server for SAP Applications 15 SP4:kernel-source SUSE Linux Enterprise Server for SAP Applications 15 SP4:reiserfs-kmp-default SUSE Manager Proxy 4.3:kernel-default SUSE Manager Proxy 4.3:kernel-default-devel SUSE Manager Proxy 4.3:kernel-devel SUSE Manager Proxy 4.3:kernel-macros SUSE Manager Proxy 4.3:kernel-source SUSE Manager Retail Branch Server 4.3:kernel-default SUSE Manager Retail Branch Server 4.3:kernel-default-devel SUSE Manager Retail Branch Server 4.3:kernel-devel SUSE Manager Retail Branch Server 4.3:kernel-macros SUSE Manager Retail Branch Server 4.3:kernel-source SUSE Manager Server 4.3:kernel-default SUSE Manager Server 4.3:kernel-default-devel SUSE Manager Server 4.3:kernel-devel SUSE Manager Server 4.3:kernel-macros SUSE Manager Server 4.3:kernel-source SUSE Real Time Module 15 SP5:kernel-devel-rt SUSE Real Time Module 15 SP5:kernel-source-rt SUSE Real Time Module 15 SP6:kernel-devel-rt SUSE Real Time Module 15 SP6:kernel-source-rt openSUSE Leap 15.5:cluster-md-kmp-default openSUSE Leap 15.5:dlm-kmp-default openSUSE Leap 15.5:gfs2-kmp-default openSUSE Leap 15.5:kernel-default openSUSE Leap 15.5:kernel-default-devel openSUSE Leap 15.5:kernel-default-extra openSUSE Leap 15.5:kernel-default-livepatch openSUSE Leap 15.5:kernel-default-livepatch-devel openSUSE Leap 15.5:kernel-default-optional openSUSE Leap 15.5:kernel-default-vdso openSUSE Leap 15.5:kernel-devel openSUSE Leap 15.5:kernel-devel-azure openSUSE Leap 15.5:kernel-devel-rt openSUSE Leap 15.5:kernel-macros openSUSE Leap 15.5:kernel-source openSUSE Leap 15.5:kernel-source-azure openSUSE Leap 15.5:kernel-source-rt openSUSE Leap 15.5:kernel-source-vanilla openSUSE Leap 15.5:kselftests-kmp-default openSUSE Leap 15.5:ocfs2-kmp-default openSUSE Leap 15.5:reiserfs-kmp-default 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 moderate 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L