cbcvebase.
CVE-2024-50010
published 2024-10-21

CVE-2024-50010: In the Linux kernel, the following vulnerability has been resolved: exec: don't WARN for racy path_noexec check Both i_mode and noexec checks wrapped in…

PriorityP417medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.24%
14.7th percentile
In the Linux kernel, the following vulnerability has been resolved: exec: don't WARN for racy path_noexec check Both i_mode and noexec checks wrapped in WARN_ON stem from an artifact of the previous implementation. They used to legitimately check for the condition, but that got moved up in two commits: 633fb6ac3980 ("exec: move S_ISREG() check earlier") 0fd338b2d2cd ("exec: move path_noexec() check earlier") Instead of being removed said checks are WARN_ON'ed instead, which has some debug value. However, the spurious path_noexec check is racy, resulting in unwarranted warnings should someone race with setting the noexec flag. One can note there is more to perm-checking whether execve is allowed and none of the conditions are guaranteed to still hold after they were tested for. Additionally this does not validate whether the code path did any perm checking to begin with -- it will pass if the inode happens to be regular. Keep the redundant path_noexec() check even though it's mindless nonsense checking for guarantee that isn't given so drop the WARN. Reword the commentary and do small tidy ups while here. [brauner: keep redundant path_noexec() check]

Affected

20 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
debianlinux-6.1< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
linuxlinux
linuxlinux>= 0fd338b2d2cdf827091ae819ae90ad760b94ad0c < c9b77438077d5a20c79ead95bcdaf9bd4797baafc9b77438077d5a20c79ead95bcdaf9bd4797baaf
linuxlinux>= 0fd338b2d2cdf827091ae819ae90ad760b94ad0c < b723f96407a0a078cf75970e4dbf16b46d286a61b723f96407a0a078cf75970e4dbf16b46d286a61
linuxlinux>= 0fd338b2d2cdf827091ae819ae90ad760b94ad0c < 0bdf77be2330062b3a64f2bec39f62ab874a67960bdf77be2330062b3a64f2bec39f62ab874a6796
linuxlinux>= 0fd338b2d2cdf827091ae819ae90ad760b94ad0c < 0d16f53c91111cec914f0811fcc526a2ba77b20d0d16f53c91111cec914f0811fcc526a2ba77b20d
linuxlinux>= 0fd338b2d2cdf827091ae819ae90ad760b94ad0c < 0d196e7589cefe207d5d41f37a0a28a1fdeeb7c60d196e7589cefe207d5d41f37a0a28a1fdeeb7c6
linuxlinux_kernel< 6.11.36.11.3
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.115-16.1.115-1
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 5.15.0-133.1445.15.0-133.144
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
msrcazl3_kernel_6.6.64.2-9_on_azure_linux_3.0
msrcazl3_kernel_6.6.92.2-1_on_azure_linux_3.0
msrccbl2_kernel_5.15.176.3-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.180.1-1_on_cbl_mariner_2.0

CVSS provenance

nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian4.7MEDIUM
vendor_msrc4.7MEDIUM
vendor_redhat4.7MEDIUM
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