In the Linux kernel, the following vulnerability has been resolved:
jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted
Following process will fail assertion 'jh->b_frozen_data == NULL' in jbd2_journal_dirty_metadata():
jbd2_journal_commit_transaction unlink(dir/a) jh->b_transaction = trans1 jh->b_jlist = BJ_Metadata journal->j_running_transaction = NULL trans1->t_state = T_COMMIT unlink(dir/b) handle->h_trans = trans2 do_get_write_access jh->b_modified = 0 jh->b_frozen_data = frozen_buffer jh->b_next_transaction = trans2 jbd2_journal_dirty_metadata is_handle_aborted is_journal_aborted // return false
--> jbd2 abort <--
while (commit_transaction->t_buffers) if (is_journal_aborted) jbd2_journal_refile_buffer __jbd2_journal_refile_buffer WRITE_ONCE(jh->b_transaction, jh->b_next_transaction) WRITE_ONCE(jh->b_next_transaction, NULL) __jbd2_journal_file_buffer(jh, BJ_Reserved) J_ASSERT_JH(jh, jh->b_frozen_data == NULL) // assertion failure !
The reproducer (See detail in [Link]) reports: ------------[ cut here ]------------ kernel BUG at fs/jbd2/transaction.c:1629! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 2 PID: 584 Comm: unlink Tainted: G W 5.19.0-rc6-00115-g4a57a8400075-dirty #697 RIP: 0010:jbd2_journal_dirty_metadata+0x3c5/0x470 RSP: 0018:ffffc90000be7ce0 EFLAGS: 00010202 Call Trace: <TASK> __ext4_handle_dirty_metadata+0xa0/0x290 ext4_handle_dirty_dirblock+0x10c/0x1d0 ext4_delete_entry+0x104/0x200 __ext4_unlink+0x22b/0x360 ext4_unlink+0x275/0x390 vfs_unlink+0x20b/0x4c0 do_unlinkat+0x42f/0x4c0 __x64_sys_unlink+0x37/0x50 do_syscall_64+0x35/0x80
After journal aborting, __jbd2_journal_refile_buffer() is executed with holding @jh->b_state_lock, we can fix it by moving 'is_handle_aborted()' into the area protected by @jh->b_state_lock.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perfUpgrade kernel-tools-develUpgrade kernel-develUpgrade bpftool-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.10.144-127.601Upgrade kernel-headersUpgrade bpftoolUpgrade kernel-debuginfoUpgrade kernelUpgrade kernel-toolsUpgrade python-perf-debuginfoUpgrade python-perfUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-4.14.291-218.527Upgrade kernel-livepatch-5.15.69-37.134 | Jul 9, 2025 | Jun 18, 2025 |
| Debian | — | Upgrade linux | Jun 20, 2025 | Jun 20, 2025 |
| Dell Powerstore Dsa2025429 | — | Upgrade Dell PowerStoreOS to the latest version | Dec 3, 2025 | Dec 2, 2025 |
| Dell Powerstore Dsa2026039 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Jan 6, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel | Oct 24, 2025 | Oct 23, 2025 |
| Redhat_linux | — | No solution existsUpgrade kernel | Jul 9, 2025 | Jun 18, 2025 |
| Ubuntu | — | Upgrade linux-aws-fipsUpgrade linux-aws-hweUpgrade linux-gcp-5.4Upgrade linux-gkeopUpgrade linux-azure-5.15Upgrade linux-azure-fipsUpgrade linux-lowlatencyUpgrade linux-ibmUpgrade linux-oracleUpgrade linuxUpgrade linux-azure-5.4Upgrade linux-oracle-5.15Upgrade linux-ibm-5.4Upgrade linux-hweUpgrade linux-nvidiaUpgrade linux-hwe-5.4Upgrade linux-iotUpgrade linux-gcp-fipsUpgrade linux-gcp-4.15Upgrade linux-azure-4.15Upgrade linux-gcp-5.15Upgrade linux-gkeUpgrade linux-aws-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-awsUpgrade linux-aws-5.15Upgrade linux-kvmUpgrade linux-hwe-5.15Upgrade linux-gcpUpgrade linux-realtimeUpgrade linux-raspi-5.4Upgrade linux-raspiUpgrade linux-bluefieldUpgrade linux-riscv-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-oracle-5.4Upgrade linux-intel-iotgUpgrade linux-azureUpgrade linux-fips | Jun 26, 2025 | Jun 18, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jun 18, 2025 |
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