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author | David S. Miller <davem@davemloft.net> | 2020-05-07 08:10:13 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2020-05-07 08:10:13 +0300 |
commit | 3793faad7b5b730941b2efbc252d14374b60843a (patch) | |
tree | e1bea43727d87f8fd30ca169f465a3591f15d63b /fs/ioctl.c | |
parent | ae1804de93f6f1626906567ae7deec8e0111259d (diff) | |
parent | a811c1fa0a02c062555b54651065899437bacdbe (diff) | |
download | linux-3793faad7b5b730941b2efbc252d14374b60843a.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts were all overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/ioctl.c')
-rw-r--r-- | fs/ioctl.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/ioctl.c b/fs/ioctl.c index 282d45be6f45..5e80b40bc1b5 100644 --- a/fs/ioctl.c +++ b/fs/ioctl.c @@ -55,6 +55,7 @@ EXPORT_SYMBOL(vfs_ioctl); static int ioctl_fibmap(struct file *filp, int __user *p) { struct inode *inode = file_inode(filp); + struct super_block *sb = inode->i_sb; int error, ur_block; sector_t block; @@ -71,6 +72,13 @@ static int ioctl_fibmap(struct file *filp, int __user *p) block = ur_block; error = bmap(inode, &block); + if (block > INT_MAX) { + error = -ERANGE; + pr_warn_ratelimited("[%s/%d] FS: %s File: %pD4 would truncate fibmap result\n", + current->comm, task_pid_nr(current), + sb->s_id, filp); + } + if (error) ur_block = 0; else |