Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix data corruption after failed write When buffered write fails to copy data into underlying page cache page, ocfs2_write_end_nolock() just zeroes out and dirties the page. This can leave dirty page beyond EOF and if page writeback tries to write this page before write succeeds and expands i_size, page gets into inconsistent state where page dirty bit is clear but buffer dirty bits stay set resulting in page data never getting written and so data copied to the page is lost. Fix the problem by invalidating page beyond EOF after failed write.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7ed80e77c908cbaa686529a49f8ae0060c5caee7 before 1629f6f522b2d058019710466a84b240683bbee3; affected 7ce2b16bad2cbfa3fa7bbc42c4448914f639ca47 before c26f3ff4c0be590c1250f945ac2e4fc5fcdc5f45; affected f8a6a2ed4b7d1c3c8631eeb6d00572bc853094a8 before 4c24eb49ab44351424ac8fe8567f91ea48a06089; affected 6dbf7bb555981fb5faf7b691e8f6169fc2b2e63b before 91d7a4bd5656552d6259e2d0f8859f9e8cc5ef68; affected 6dbf7bb555981fb5faf7b691e8f6169fc2b2e63b before a9e53869cb43c96d6d851c491fd4e26430ab6ba6; affected 6dbf7bb555981fb5faf7b691e8f6169fc2b2e63b before 47eb055ad3588fc96d34e9e1dd87b210ce62906b; affected 6dbf7bb555981fb5faf7b691e8f6169fc2b2e63b before 205759c6c18f54659b0b5976b14a52d1b3eb9f57; affected 6dbf7bb555981fb5faf7b691e8f6169fc2b2e63b before 90410bcf873cf05f54a32183afff0161f44f9715; affected acef5107e2eacb08a16ad5db60320d65bd26a6c0; affected 36ed9e604215f58cec0381ca5fcc6da05f2d87ca; affected 4.14.204 before 4.14.312; affected 4.19.155 before 4.19.280; affected 5.4.75 before 5.4.240; affected 4.9.242 before 4.10; affected 5.9.5 before 5.10 |
| Linux / Linux | affected 5.10; unaffected 0 before 5.10; unaffected 4.14.312 through 4.14.*; unaffected 4.19.280 through 4.19.*; unaffected 5.4.240 through 5.4.*; unaffected 5.10.177 through 5.10.*; unaffected 5.15.105 through 5.15.*; unaffected 6.1.21 through 6.1.*; unaffected 6.2.8 through 6.2.*; unaffected 6.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/1629f6f522b2d058019710466a84b240683bbee3
- https://git.kernel.org/stable/c/c26f3ff4c0be590c1250f945ac2e4fc5fcdc5f45
- https://git.kernel.org/stable/c/4c24eb49ab44351424ac8fe8567f91ea48a06089
- https://git.kernel.org/stable/c/91d7a4bd5656552d6259e2d0f8859f9e8cc5ef68
- https://git.kernel.org/stable/c/a9e53869cb43c96d6d851c491fd4e26430ab6ba6
- https://git.kernel.org/stable/c/47eb055ad3588fc96d34e9e1dd87b210ce62906b
- https://git.kernel.org/stable/c/205759c6c18f54659b0b5976b14a52d1b3eb9f57
- https://git.kernel.org/stable/c/90410bcf873cf05f54a32183afff0161f44f9715