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package/util-linux: security bump to 2.41.4

PATCH Applied Marcus Hoffmann via buildroot 1 participant 3 messages Apr 20 – May 4

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PATCH 1/1 package/util-linux: security bump to 2.41.4

Security fixes:

CVE-2026-27456 - mount(8) TOCTOU symlink attack via loop device.
The SUID mount follows symlinks when resolving loop backing file paths. On systems where non-root users are permitted to mount loop devices (via 'user' option in fstab), this allows access to arbitrary files.

CWE-190 - Integer overflow in libblkid parse_dos_extended().
A crafted MBR disk image can cause uint32_t wraparound in EBR chain processing, causing reported partitions to not match the on-disk layout. Tools like udisks may then register a partition at logical sector 0.

Full release notes: https://www.kernel.org/pub/linux/utils/util-linux/v2.41/v2.41.4-ReleaseNotes

---
 package/util-linux/util-linux.hash | 2 +-
 package/util-linux/util-linux.mk   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
package/util-linux/util-linux.hash +1 -1
index eab8a0c3b5..5a5656212c 100644
@@ -1,5 +1,5 @@
 # From https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.41/sha256sums.asc
-sha256  3330d873f0fceb5560b89a7dc14e4f3288bbd880e96903ed9b50ec2b5799e58b  util-linux-2.41.3.tar.xz
+sha256  a8c213cc06048862602a42b2d299b340001f6d05c4407b549f3e03521df83688  util-linux-2.41.4.tar.xz
 # License files, locally calculated
 sha256  4c2db318192bda62f3f8fcf71488bb5e602ae4385eba281d711b46cc13a40bb3  README.licensing
 sha256  527f738966ca396cd5a68c1509390de2a780c6b614d9ee57f7544a6161938ed1  Documentation/licenses/COPYING.BSD-2-Clause
package/util-linux/util-linux.mk +1 -1
index 7617041a46..1271bc7dc0 100644
@@ -8,7 +8,7 @@
 # util-linux-libs/util-linux-libs.mk needs to be updated accordingly as well.
 
 UTIL_LINUX_VERSION_MAJOR = 2.41
-UTIL_LINUX_VERSION = $(UTIL_LINUX_VERSION_MAJOR).3
+UTIL_LINUX_VERSION = $(UTIL_LINUX_VERSION_MAJOR).4
 UTIL_LINUX_SOURCE = util-linux-$(UTIL_LINUX_VERSION).tar.xz
 UTIL_LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/utils/util-linux/v$(UTIL_LINUX_VERSION_MAJOR)
 
Signature · 6 lines
2.53.0

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#1 lore raw
Quoted 14 lines · Marcus Hoffmann via buildroot

Security fixes:

CVE-2026-27456 - mount(8) TOCTOU symlink attack via loop device.
The SUID mount follows symlinks when resolving loop backing file paths. On systems where non-root users are permitted to mount loop devices (via 'user' option in fstab), this allows access to arbitrary files.

CWE-190 - Integer overflow in libblkid parse_dos_extended().
A crafted MBR disk image can cause uint32_t wraparound in EBR chain processing, causing reported partitions to not match the on-disk layout. Tools like udisks may then register a partition at logical sector 0.

Quoted 3 lines

Full release notes: https://www.kernel.org/pub/linux/utils/util-linux/v2.41/v2.41.4-ReleaseNotes

Applied to master, thanks.
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#2 lore raw
In reply to Marcus Hoffmann via buildroot

In reply of:

Quoted 14 lines

Security fixes:

CVE-2026-27456 - mount(8) TOCTOU symlink attack via loop device.
The SUID mount follows symlinks when resolving loop backing file paths. On systems where non-root users are permitted to mount loop devices (via 'user' option in fstab), this allows access to arbitrary files.

CWE-190 - Integer overflow in libblkid parse_dos_extended().
A crafted MBR disk image can cause uint32_t wraparound in EBR chain processing, causing reported partitions to not match the on-disk layout. Tools like udisks may then register a partition at logical sector 0.

Quoted 3 lines

Full release notes: https://www.kernel.org/pub/linux/utils/util-linux/v2.41/v2.41.4-ReleaseNotes

Applied to 2026.02.x. Thanks

Quoted 36 lines
---
 package/util-linux/util-linux.hash | 2 +-
 package/util-linux/util-linux.mk   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
package/util-linux/util-linux.hash +1 -1
index eab8a0c3b5..5a5656212c 100644
@@ -1,5 +1,5 @@
 # From https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.41/sha256sums.asc
-sha256  3330d873f0fceb5560b89a7dc14e4f3288bbd880e96903ed9b50ec2b5799e58b  util-linux-2.41.3.tar.xz
+sha256  a8c213cc06048862602a42b2d299b340001f6d05c4407b549f3e03521df83688  util-linux-2.41.4.tar.xz
 # License files, locally calculated
 sha256  4c2db318192bda62f3f8fcf71488bb5e602ae4385eba281d711b46cc13a40bb3  README.licensing
 sha256  527f738966ca396cd5a68c1509390de2a780c6b614d9ee57f7544a6161938ed1  Documentation/licenses/COPYING.BSD-2-Clause
package/util-linux/util-linux.mk +1 -1
index 7617041a46..1271bc7dc0 100644
@@ -8,7 +8,7 @@
 # util-linux-libs/util-linux-libs.mk needs to be updated accordingly as well.
 
 UTIL_LINUX_VERSION_MAJOR = 2.41
-UTIL_LINUX_VERSION = $(UTIL_LINUX_VERSION_MAJOR).3
+UTIL_LINUX_VERSION = $(UTIL_LINUX_VERSION_MAJOR).4
 UTIL_LINUX_SOURCE = util-linux-$(UTIL_LINUX_VERSION).tar.xz
 UTIL_LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/utils/util-linux/v$(UTIL_LINUX_VERSION_MAJOR)
 
Signature · 6 lines
2.53.0

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_______________________________________________
buildroot mailing list
[email protected]
https://lists.buildroot.org/mailman/listinfo/buildroot