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SUSE: CVE-2024-37078: SUSE Linux Security Advisory

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SUSE: CVE-2024-37078: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
06/25/2024
Created
07/10/2024
Added
07/10/2024
Modified
07/11/2024

Description

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential kernel bug due to lack of writeback flag waiting Destructive writes to a block device on which nilfs2 is mounted can cause a kernel bug in the folio/page writeback start routine or writeback end routine (__folio_start_writeback in the log below): kernel BUG at mm/page-writeback.c:3070! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI ... RIP: 0010:__folio_start_writeback+0xbaa/0x10e0 Code: 25 ff 0f 00 00 0f 84 18 01 00 00 e8 40 ca c6 ff e9 17 f6 ff ff e8 36 ca c6 ff 4c 89 f7 48 c7 c6 80 c0 12 84 e8 e7 b3 0f 00 90 <0f> 0b e8 1f ca c6 ff 4c 89 f7 48 c7 c6 a0 c6 12 84 e8 d0 b3 0f 00 ... Call Trace: <TASK> nilfs_segctor_do_construct+0x4654/0x69d0 [nilfs2] nilfs_segctor_construct+0x181/0x6b0 [nilfs2] nilfs_segctor_thread+0x548/0x11c0 [nilfs2] kthread+0x2f0/0x390 ret_from_fork+0x4b/0x80 ret_from_fork_asm+0x1a/0x30 </TASK> This is because when the log writer starts a writeback for segment summary blocks or a super root block that use the backing device's page cache, it does not wait for the ongoing folio/page writeback, resulting in an inconsistent writeback state. Fix this issue by waiting for ongoing writebacks when putting folios/pages on the backing device into writeback state.

Solution(s)

  • suse-upgrade-cluster-md-kmp-azure
  • suse-upgrade-cluster-md-kmp-rt
  • suse-upgrade-dlm-kmp-azure
  • suse-upgrade-dlm-kmp-rt
  • suse-upgrade-gfs2-kmp-azure
  • suse-upgrade-gfs2-kmp-rt
  • suse-upgrade-kernel-azure
  • suse-upgrade-kernel-azure-devel
  • suse-upgrade-kernel-azure-extra
  • suse-upgrade-kernel-azure-livepatch-devel
  • suse-upgrade-kernel-azure-optional
  • suse-upgrade-kernel-azure-vdso
  • suse-upgrade-kernel-devel-azure
  • suse-upgrade-kernel-devel-rt
  • suse-upgrade-kernel-rt
  • suse-upgrade-kernel-rt-devel
  • suse-upgrade-kernel-rt-extra
  • suse-upgrade-kernel-rt-livepatch
  • suse-upgrade-kernel-rt-livepatch-devel
  • suse-upgrade-kernel-rt-optional
  • suse-upgrade-kernel-rt-vdso
  • suse-upgrade-kernel-rt_debug
  • suse-upgrade-kernel-rt_debug-devel
  • suse-upgrade-kernel-rt_debug-livepatch-devel
  • suse-upgrade-kernel-rt_debug-vdso
  • suse-upgrade-kernel-source-azure
  • suse-upgrade-kernel-source-rt
  • suse-upgrade-kernel-syms-azure
  • suse-upgrade-kernel-syms-rt
  • suse-upgrade-kselftests-kmp-azure
  • suse-upgrade-kselftests-kmp-rt
  • suse-upgrade-ocfs2-kmp-azure
  • suse-upgrade-ocfs2-kmp-rt
  • suse-upgrade-reiserfs-kmp-azure
  • suse-upgrade-reiserfs-kmp-rt

References

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