Description
In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the filesystem is read-only before calling txBegin, and returning with appropiate error code.
Product status
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a7225e9e09519deb7e0c42eb6070029cc456e84d
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 1b4c144767736221cad92c132f72b3c6ed06a0ea
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 3e94d0d378d2754b26fc54b429582553f7b53e15
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before fd2db13fb72ff18c633a48229589d42ceb89d1f8
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 47cfdc338d674d38f4b2f22b7612cc6a2763ba27
4.14.324
4.19.293
5.4.255
5.10.192
5.15.123
6.1.42
6.4.7
6.5
References
git.kernel.org/...c/a7225e9e09519deb7e0c42eb6070029cc456e84d
git.kernel.org/...c/1b4c144767736221cad92c132f72b3c6ed06a0ea
git.kernel.org/...c/a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2
git.kernel.org/...c/2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1
git.kernel.org/...c/3e94d0d378d2754b26fc54b429582553f7b53e15
git.kernel.org/...c/3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3
git.kernel.org/...c/fd2db13fb72ff18c633a48229589d42ceb89d1f8
git.kernel.org/...c/47cfdc338d674d38f4b2f22b7612cc6a2763ba27
