In the Linux kernel, the following vulnerability has been resolved:
ext4: fix buffer_head leak in ext4_init_orphan_info
ext4_init_orphan_info() reads orphan file blocks with ext4_bread()
and stores the returned buffer_head in oi->of_binfo[i].ob_bh.
If ext4_bread() succeeds but the orphan block magic or checksum
validation fails, the function jumps to out_free. However, the old
out_free loop starts releasing buffers from i - 1, so the current
buffer_head at index i is skipped.
This leaks the buffer_head reference obtained by ext4_bread() on the
bad magic and bad checksum error paths.
Fix this by tracking the number of successfully read buffer_heads and
releasing exactly those buffer_heads on the error path.
from 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 before a9a6ec1298f9bc134b2c5db27d25bb10603b7113; from 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 before 35fc83c65faf7949f5701bb34b20f822560a7718; from 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 before 74637f7fef030e5fb2e835b7dfeb05efdc48e0fe; from 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 before 6ec53ccab0d691b3c73e03d930343ca45987e88d; from 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 before 1399f102d8a1855c1a38506057306ec79d0787d9; from 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 before e1e342d9a561c016b8531ec1f4dcefaad9d64954; from 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 before 05704335803b69c1bfa8637b7ada942bf2ee8a41
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.
Printed from infosecsignals.com. Every record links back to the agency that published it.
Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.
