cbcvebase.
CVE-2024-46840
published 2024-09-27

CVE-2024-46840: In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == 0 in snapshot delete In reada we BUG_ON(refs == 0)…

PriorityP417medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.26%
18.1th percentile
In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == 0 in snapshot delete In reada we BUG_ON(refs == 0), which could be unkind since we aren't holding a lock on the extent leaf and thus could get a transient incorrect answer. In walk_down_proc we also BUG_ON(refs == 0), which could happen if we have extent tree corruption. Change that to return -EUCLEAN. In do_walk_down() we catch this case and handle it correctly, however we return -EIO, which -EUCLEAN is a more appropriate error code. Finally in walk_up_proc we have the same BUG_ON(refs == 0), so convert that to proper error handling. Also adjust the error message so we can actually do something with the information.

Affected

33 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.112-1 (bookworm)linux 6.1.112-1 (bookworm)
debianlinux-6.1< linux 6.1.112-1 (bookworm)linux 6.1.112-1 (bookworm)
linuxlinux
linuxlinux>= 2c47e605a91dde6b0514f689645e7ab336c8592a < c847b28a799733b04574060ab9d00f215970627dc847b28a799733b04574060ab9d00f215970627d
linuxlinux>= 2c47e605a91dde6b0514f689645e7ab336c8592a < 71291aa7246645ef622621934d2067400380645e71291aa7246645ef622621934d2067400380645e
linuxlinux>= 2c47e605a91dde6b0514f689645e7ab336c8592a < c60676b81fab456b672796830f6d8057058f029cc60676b81fab456b672796830f6d8057058f029c
linuxlinux>= 2c47e605a91dde6b0514f689645e7ab336c8592a < 728d4d045b628e006b48a448f3326a7194c88d32728d4d045b628e006b48a448f3326a7194c88d32
linuxlinux>= 2c47e605a91dde6b0514f689645e7ab336c8592a < 9cc887ac24b7a0598f4042ae9af6b9a33072f75b9cc887ac24b7a0598f4042ae9af6b9a33072f75b
linuxlinux>= 2c47e605a91dde6b0514f689645e7ab336c8592a < 7d1df13bf078ffebfedd361d714ff6cee1ff01b97d1df13bf078ffebfedd361d714ff6cee1ff01b9
linuxlinux>= 2c47e605a91dde6b0514f689645e7ab336c8592a < 03804641ec2d0da4fa088ad21c88e703d151ce1603804641ec2d0da4fa088ad21c88e703d151ce16
linuxlinux>= 2c47e605a91dde6b0514f689645e7ab336c8592a < b8ccef048354074a548f108e51d0557d6adfd3a3b8ccef048354074a548f108e51d0557d6adfd3a3
linuxlinux_kernel< 4.19.3224.19.322
linuxlinux_kernel>= 0 < 5.10.226-15.10.226-1
linuxlinux_kernel>= 0 < 6.1.112-16.1.112-1
linuxlinux_kernel>= 0 < 6.10.11-16.10.11-1
linuxlinux_kernel>= 0 < 6.10.11-16.10.11-1
linuxlinux_kernel>= 0 < 5.4.0-200.2205.4.0-200.220
linuxlinux_kernel>= 0 < 5.15.0-125.1355.15.0-125.135
linuxlinux_kernel>= 0 < 6.8.0-50.516.8.0-50.51
linuxlinux_kernel>= 4.20 < 5.4.2845.4.284
linuxlinux_kernel>= 5.11 < 5.15.1675.15.167
linuxlinux_kernel>= 5.16 < 6.1.1106.1.110
linuxlinux_kernel>= 5.5 < 5.10.2265.10.226
linuxlinux_kernel>= 6.2 < 6.6.516.6.51
linuxlinux_kernel>= 6.7 < 6.10.106.10.10

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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