Description
In the Linux kernel, the following vulnerability has been resolved: ext2: fix ignored return value of generic_write_sync() Fix ext2_dio_write_iter() to propagate the error returned by generic_write_sync() instead of silently discarding it, which could cause write(2) to return success to userspace on O_SYNC/O_DSYNC files even when the sync failed. The correct pattern, already used in ext2_dax_write_iter() in the same file and in ext4, xfs, f2fs among others, is: if (ret > 0) ret = generic_write_sync(iocb, ret); Found by Linux Verification Center (linuxtesting.org) with SVACE. [JK: Reflect also filemap_write_and_wait() return value]
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
fb5de4358e1aa4753dce73c4dc1aca73ff39cedd to < 8990dbb7065b0b002b1e58b9091a5b61f5e94dbeaffectedfb5de4358e1aa4753dce73c4dc1aca73ff39cedd to < 8d70b3973020e59845c0bdad90e0b9c2295fd493affectedfb5de4358e1aa4753dce73c4dc1aca73ff39cedd to < ffa974b2f50ad8b911b9066d7aed84ad0afabcdbaffectedfb5de4358e1aa4753dce73c4dc1aca73ff39cedd to < b6bc07e49a5fbb335f56eb90cd63dec6584c77d3affectedfb5de4358e1aa4753dce73c4dc1aca73ff39cedd to < a4659be0bc7cb1856ffb15b67f903229ae8891ecaffected
Linux Linux
Default version status: affected
6.5affected0 to < 6.5unaffected6.6.145 to ≤ 6.6.*unaffected6.12.97 to ≤ 6.12.*unaffected6.18.40 to ≤ 6.18.*unaffected7.1.5 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/8990dbb7065b0b002b1e58b9091a5b61f5e94dbe ↗
- https://git.kernel.org/stable/c/8d70b3973020e59845c0bdad90e0b9c2295fd493 ↗
- https://git.kernel.org/stable/c/ffa974b2f50ad8b911b9066d7aed84ad0afabcdb ↗
- https://git.kernel.org/stable/c/b6bc07e49a5fbb335f56eb90cd63dec6584c77d3 ↗
- https://git.kernel.org/stable/c/a4659be0bc7cb1856ffb15b67f903229ae8891ec ↗