Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: Kyber: An out-of-bounds access occurred when the thread was preempted. The function blkmqschedbiomerge retrieves the ctx and hctx for the current CPU and passes the hctx to -biomerge. The function kyberbiomerge then retrieves the...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: A fix was made to avoid a use-after-free condition related to cached IPU bio. The xfstest generic/019 report a bug: Kernel BUG: At mm/filemap.c:1619! RIP: 0010:folioendwriteback+0x8a/0x90 Call Trace:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: block: Fixed the issue of iterating over an empty bio with bioforeachfolioall. If the bio contains no data, biofirstfolio calls pagefolio using a NULL pointer, resulting in a buffer overflow error. We’ve moved the test that check...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtiopmem: Added the missing REQOPWRITE for flushing bio. When performing mkfs.xfs on a pmem device, the following warning was encountered: ------------ Cut here ------------ Warning: CPU: 2, PID: 384; at block/blk-core.c:751:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: erofs: set fileio bio failed in short read case For file-backed mounts, IO requests are handled by vfsiocbiterread. However, it can be interrupted by SIGKILL, resulting in the number of bytes actually copied. Unused folios in the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: erofs: Add GFPNOIO to the bio completion if necessary. The bio completion path in the process context e.g., dm-verity will directly call into decompression instead of triggering another workqueue context for minimal scheduling...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In the “block” layer, do not call “rqqosops-donebio” if the bio data structure is not being tracked. The “rqqos” framework is only applied on request-based drivers. Therefore: 1 The “rqqosdonebio” function is not necessary for...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: blk-mq: The crypto keyslot must be released before reporting I/O completion. Once all I/O using the blkcryptokey is completed, the file systems can call blkcryptoevictkey. However, the block layer currently does not call...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

In the Linux kernel, the following vulnerability has been resolved: md/raid10: fixed the memory leak related to ‘conf-biosplit’. In the error path of raid10run, ‘conf’ needs to be freed. However, ‘conf-biosplit’ is not freed, resulting in a memory leak. Since there are three places where ‘conf’...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: blk-mq: Ensure that the active queue usage is retained for biointegrityprep. The function blkintegrityunregister may be called if the queue usage counter is not retained for a bio with integrity prepared. This could lead to a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: erofs: Proper handling of overlapping pclusters from crafted images. syzbot reported a task hanging issue due to a deadlock situation where it was waiting for the folio lock of a cached folio that would be used for cache I/Os...

Astra Linux – Vulnerability in OpenSSL

The public API function BIOnewNDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally by OpenSSL to support SMIME, CMS, and PKCS7 streaming capabilities. However, it can also be called directly by end-user applications. This function receives a BIO from...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not clean up the repair bio if submission fails. The submission helper always runs bioendio on the bio if submission fails. Therefore, cleaning up the bio only leads to various use-after-free errors and NULL pointer...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: scrub: Properly handles RST lookup errors. BUG When running btrfs/060 with the forced RST feature enabled, the following ASSERT within scrubreadendio might crash: ASSERTsectornr nrsectors; Previously, a tree dump from...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: md/raid5: The unnecessary bioput function in raid5readonechunk has been removed. When performing chunk-sized reads on disks with badblocks, it was observed that the bio functions free and put were not properly handled...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: dm-crypt: Do not modify the data when using authenticated encryption. It was stated that authenticated encryption could produce invalid tags when the data being encrypted was modified 1. Therefore, this issue can be addressed by...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drbd: Only clone the bio if there is a backing device available. The commit c347a787e34cb drbd: changed -bibdev to -bibdev in drbdreqnew moved the biosetdev call which has since been removed to an earlier stage, from...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: blk-throttle: The BIOTHROTTLED flag is set when bio is throttled. 1. In the current process, all bio instances will set the BIOTHROTTLED flag after the blkthrotlbio function is called. 2. If bio needs to be throttled, the time...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: block: Fixed an incorrect offset in biotruncate The biotruncate function clears the buffer outside of the last block of bdev. However, the current implementation of biotruncate uses the wrong offset for the page. As a result, it...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: md: fixed a crash in mempoolfree There is a crash in mempoolfree when running the lvm test using shell/lvchange-rebuild-raid.sh. The reason for the crash is as follows: - superwritten calls atomicdecandtest&mddev-pendingwrites an...