CVE-2023-52699

In the Linux kernel, the following vulnerability has been resolved: sysv: don't call sb_bread() with pointers_lock held syzbot is reporting sleep in atomic context in SysV filesystem [1], for sb_bread() is called with rw_spinlock held. A "write_lock(&pointers_lock) => read_lock(&pointers_lock) deadlock" bug and a "sb_bread() with write_lock(&pointers_lock)" bug were introduced by "Replace BKL for chain locking with sysvfs-private rwlock" in Linux 2.5.12. Then, "[PATCH] err1-40: sysvfs locking fix" in Linux 2.6.8 fixed the former bug by moving pointers_lock lock to the callers, but instead introduced a "sb_bread() with read_lock(&pointers_lock)" bug (which made this problem easier to hit). Al Viro suggested that why not to do like get_branch()/get_block()/ find_shared() in Minix filesystem does. And doing like that is almost a revert of "[PATCH] err1-40: sysvfs locking fix" except that get_branch() from with find_shared() is called without write_lock(&pointers_lock).
References
Link Resource
https://git.kernel.org/stable/c/13b33feb2ebddc2b1aa607f553566b18a4af1d76 Patch
https://git.kernel.org/stable/c/1b4fe801b5bedec2b622ddb18e5c9bf26c63d79f Patch
https://git.kernel.org/stable/c/53cb1e52c9db618c08335984d1ca80db220ccf09 Patch
https://git.kernel.org/stable/c/674c1c4229e743070e09db63a23442950ff000d1 Patch
https://git.kernel.org/stable/c/89e8524135a3902e7563a5a59b7b5ec1bf4904ac Patch
https://git.kernel.org/stable/c/a69224223746ab96d43e5db9d22d136827b7e2d3 Patch
https://git.kernel.org/stable/c/f123dc86388cb669c3d6322702dc441abc35c31e Patch
https://git.kernel.org/stable/c/fd203d2c671bdee9ab77090ff394d3b71b627927 Patch
https://git.kernel.org/stable/c/13b33feb2ebddc2b1aa607f553566b18a4af1d76 Patch
https://git.kernel.org/stable/c/1b4fe801b5bedec2b622ddb18e5c9bf26c63d79f Patch
https://git.kernel.org/stable/c/53cb1e52c9db618c08335984d1ca80db220ccf09 Patch
https://git.kernel.org/stable/c/674c1c4229e743070e09db63a23442950ff000d1 Patch
https://git.kernel.org/stable/c/89e8524135a3902e7563a5a59b7b5ec1bf4904ac Patch
https://git.kernel.org/stable/c/a69224223746ab96d43e5db9d22d136827b7e2d3 Patch
https://git.kernel.org/stable/c/f123dc86388cb669c3d6322702dc441abc35c31e Patch
https://git.kernel.org/stable/c/fd203d2c671bdee9ab77090ff394d3b71b627927 Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Mailing List Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

History

15 Oct 2026, 01:17

Type Values Removed Values Added
References
  • () https://cert-portal.siemens.com/productcert/html/ssa-398330.html -

Information

Published : 2024-05-19 11:15

Updated : 2026-10-15 01:17


NVD link : CVE-2023-52699

Mitre link : CVE-2023-52699

CVE.ORG link : CVE-2023-52699


JSON object : View

Products Affected

debian

  • debian_linux

linux

  • linux_kernel
CWE
CWE-667

Improper Locking