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authorLinus Torvalds <torvalds@linux-foundation.org>2024-06-11 12:04:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-06-11 12:04:21 -0700
commit2ef5971ff345d3c000873725db555085e0131961 (patch)
tree4f499571c0402e207d42e102ab2b1adbcff2c72e /include
parent83a7eefedc9b56fe7bfeff13b6c7356688ffa670 (diff)
parentf5ceb1bbc98c69536d4673a97315e8427e67de1b (diff)
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Merge tag 'vfs-6.10-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner: "Misc: - Restore debugfs behavior of ignoring unknown mount options - Fix kernel doc for netfs_wait_for_oustanding_io() - Fix struct statx comment after new addition for this cycle - Fix a check in find_next_fd() iomap: - Fix data zeroing behavior when an extent spans the block that contains i_size - Restore i_size increasing in iomap_write_end() for now to avoid stale data exposure on xfs with a realtime device Cachefiles: - Remove unneeded fdtable.h include - Improve trace output for cachefiles_obj_{get,put}_ondemand_fd() - Remove requests from the request list to prevent accessing already freed requests - Fix UAF when issuing restore command while the daemon is still alive by adding an additional reference count to requests - Fix UAF by grabbing a reference during xarray lookup with xa_lock() held - Simplify error handling in cachefiles_ondemand_daemon_read() - Add consistency checks read and open requests to avoid crashes - Add a spinlock to protect ondemand_id variable which is used to determine whether an anonymous cachefiles fd has already been closed - Make on-demand reads killable allowing to handle broken cachefiles daemon better - Flush all requests after the kernel has been marked dead via CACHEFILES_DEAD to avoid hung-tasks - Ensure that closed requests are marked as such to avoid reusing them with a reopen request - Defer fd_install() until after copy_to_user() succeeded and thereby get rid of having to use close_fd() - Ensure that anonymous cachefiles on-demand fds are reused while they are valid to avoid pinning already freed cookies" * tag 'vfs-6.10-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: iomap: Fix iomap_adjust_read_range for plen calculation iomap: keep on increasing i_size in iomap_write_end() cachefiles: remove unneeded include of <linux/fdtable.h> fs/file: fix the check in find_next_fd() cachefiles: make on-demand read killable cachefiles: flush all requests after setting CACHEFILES_DEAD cachefiles: Set object to close if ondemand_id < 0 in copen cachefiles: defer exposing anon_fd until after copy_to_user() succeeds cachefiles: never get a new anonymous fd if ondemand_id is valid cachefiles: add spin_lock for cachefiles_ondemand_info cachefiles: add consistency check for copen/cread cachefiles: remove err_put_fd label in cachefiles_ondemand_daemon_read() cachefiles: fix slab-use-after-free in cachefiles_ondemand_daemon_read() cachefiles: fix slab-use-after-free in cachefiles_ondemand_get_fd() cachefiles: remove requests from xarray during flushing requests cachefiles: add output string to cachefiles_obj_[get|put]_ondemand_fd statx: Update offset commentary for struct statx netfs: fix kernel doc for nets_wait_for_outstanding_io() debugfs: continue to ignore unknown mount options
Diffstat (limited to 'include')
-rw-r--r--include/linux/netfs.h2
-rw-r--r--include/trace/events/cachefiles.h8
-rw-r--r--include/uapi/linux/stat.h2
3 files changed, 9 insertions, 3 deletions
diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index 3ca3906bb8da..5d0288938cc2 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -521,7 +521,7 @@ static inline struct fscache_cookie *netfs_i_cookie(struct netfs_inode *ctx)
/**
* netfs_wait_for_outstanding_io - Wait for outstanding I/O to complete
- * @ctx: The netfs inode to wait on
+ * @inode: The netfs inode to wait on
*
* Wait for outstanding I/O requests of any type to complete. This is intended
* to be called from inode eviction routines. This makes sure that any
diff --git a/include/trace/events/cachefiles.h b/include/trace/events/cachefiles.h
index cf4b98b9a9ed..7d931db02b93 100644
--- a/include/trace/events/cachefiles.h
+++ b/include/trace/events/cachefiles.h
@@ -33,6 +33,8 @@ enum cachefiles_obj_ref_trace {
cachefiles_obj_see_withdrawal,
cachefiles_obj_get_ondemand_fd,
cachefiles_obj_put_ondemand_fd,
+ cachefiles_obj_get_read_req,
+ cachefiles_obj_put_read_req,
};
enum fscache_why_object_killed {
@@ -127,7 +129,11 @@ enum cachefiles_error_trace {
EM(cachefiles_obj_see_lookup_cookie, "SEE lookup_cookie") \
EM(cachefiles_obj_see_lookup_failed, "SEE lookup_failed") \
EM(cachefiles_obj_see_withdraw_cookie, "SEE withdraw_cookie") \
- E_(cachefiles_obj_see_withdrawal, "SEE withdrawal")
+ EM(cachefiles_obj_see_withdrawal, "SEE withdrawal") \
+ EM(cachefiles_obj_get_ondemand_fd, "GET ondemand_fd") \
+ EM(cachefiles_obj_put_ondemand_fd, "PUT ondemand_fd") \
+ EM(cachefiles_obj_get_read_req, "GET read_req") \
+ E_(cachefiles_obj_put_read_req, "PUT read_req")
#define cachefiles_coherency_traces \
EM(cachefiles_coherency_check_aux, "BAD aux ") \
diff --git a/include/uapi/linux/stat.h b/include/uapi/linux/stat.h
index 67626d535316..95770941ee2c 100644
--- a/include/uapi/linux/stat.h
+++ b/include/uapi/linux/stat.h
@@ -126,8 +126,8 @@ struct statx {
__u64 stx_mnt_id;
__u32 stx_dio_mem_align; /* Memory buffer alignment for direct I/O */
__u32 stx_dio_offset_align; /* File offset alignment for direct I/O */
- __u64 stx_subvol; /* Subvolume identifier */
/* 0xa0 */
+ __u64 stx_subvol; /* Subvolume identifier */
__u64 __spare3[11]; /* Spare space for future expansion */
/* 0x100 */
};