md: suspend array while updating raid_disks via sysfs
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Linux | Linux | unaffected |
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| Linux | Linux | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions |
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| Linux | Linux Kernel | — |
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-6141-1 | linux security update |
Ubuntu USN |
USN-8278-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8289-1 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-8296-1 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-8296-2 | Linux kernel (NVIDIA Tegra) vulnerabilities |
Ubuntu USN |
USN-8278-2 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-8440-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-8499-1 | Linux kernel (Xilinx) vulnerabilities |
Ubuntu USN |
USN-8289-2 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-8393-1 | Linux kernel (Azure FIPS) vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.128% probability within 30 days)
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| Weaknesses | CWE-362 |
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ssvc
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| Weaknesses | CWE-367 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:3.10:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:3.10:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:3.10:rc7:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:* |
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cvssV3_1
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cvssV3_1
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| Metrics |
threat_severity
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cvssV3_1
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| Description | In the Linux kernel, the following vulnerability has been resolved: md: suspend array while updating raid_disks via sysfs In raid1_reshape(), freeze_array() is called before modifying the r1bio memory pool (conf->r1bio_pool) and conf->raid_disks, and unfreeze_array() is called after the update is completed. However, freeze_array() only waits until nr_sync_pending and (nr_pending - nr_queued) of all buckets reaches zero. When an I/O error occurs, nr_queued is increased and the corresponding r1bio is queued to either retry_list or bio_end_io_list. As a result, freeze_array() may unblock before these r1bios are released. This can lead to a situation where conf->raid_disks and the mempool have already been updated while queued r1bios, allocated with the old raid_disks value, are later released. Consequently, free_r1bio() may access memory out of bounds in put_all_bios() and release r1bios of the wrong size to the new mempool, potentially causing issues with the mempool as well. Since only normal I/O might increase nr_queued while an I/O error occurs, suspending the array avoids this issue. Note: Updating raid_disks via ioctl SET_ARRAY_INFO already suspends the array. Therefore, we suspend the array when updating raid_disks via sysfs to avoid this issue too. | |
| Title | md: suspend array while updating raid_disks via sysfs | |
| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
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| References |
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