CVE-2024-50006ext4: fix i_data_sem unlock order in ext4_ind_migrate()
Updated under an hour ago ()
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It affects Linux and 8 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: ext4: fix i_data_sem unlock order in ext4_ind_migrate() Fuzzing reports a possible deadlock in jbd2_log_wait_commit. This issue is triggered when an EXT4_IOC_MIGRATE ioctl is set to require synchronous updates because the file descriptor is opened with O_SYNC. This can lead to the jbd2_journal_stop() function calling jbd2_might_wait_for_commit(), potentially causing a deadlock if the EXT4_IOC_MIGRATE call races with a write(2) system call. This problem only arises when CONFIG_PROVE_LOCKING is enabled. In this case, the jbd2_might_wait_for_commit macro locks jbd2_handle in the jbd2_journal_stop function while i_data_sem is locked. This triggers lockdep because the jbd2_journal_start function might also lock the same jbd2_handle simultaneously. Found by Linux Verification Center (linuxtesting.org) with syzkaller. Rule: add
- CVSS
- 4.7 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 4192adefc9c570698821c5eb9873320eac2fcbf1; from e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 3c46d6060d3e38de22196c1fe7706c5a3c696285; from e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 53b1999cfd2c7addf2e581a32865fe8835467b44; from e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before ef05572da0c0eb89614ed01cc17d3c882bdbd1ff; from e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 9fedf51ab8cf7b69bff08f37fe0989fec7f5d870; from e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before d43776b907659affef1de888525847d64b244194; from e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 6252cb6bde7fc76cb8dcb49d1def7c326b190820; from e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before d58a00e981d3118b91d503da263e640b7cde6729; and 1 more ranges | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | before V1.1.1 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name) | before V3.2 | CISA ADP |
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name) | before V3.2 | CISA ADP |
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name) | before V3.2 | CISA ADP |
linux linux_kernel linux:linux_kernel | before 5.10.227; from 5.11 before 5.15.168; from 5.16 before 6.1.113; from 6.2 before 6.6.55; from 6.7 before 6.10.14; from 6.11 before 6.11.3 | NVD |
References
- https://git.kernel.org/stable/c/4192adefc9c570698821c5eb9873320eac2fcbf1
- https://git.kernel.org/stable/c/3c46d6060d3e38de22196c1fe7706c5a3c696285
- https://git.kernel.org/stable/c/53b1999cfd2c7addf2e581a32865fe8835467b44patch
- https://git.kernel.org/stable/c/ef05572da0c0eb89614ed01cc17d3c882bdbd1ffpatch
- https://git.kernel.org/stable/c/9fedf51ab8cf7b69bff08f37fe0989fec7f5d870patch
- https://git.kernel.org/stable/c/d43776b907659affef1de888525847d64b244194patch
- https://git.kernel.org/stable/c/6252cb6bde7fc76cb8dcb49d1def7c326b190820patch
- https://git.kernel.org/stable/c/d58a00e981d3118b91d503da263e640b7cde6729patch
- https://git.kernel.org/stable/c/cc749e61c011c255d81b192a822db650c68b313fpatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.