December 2023 - Linux-stable-mirror

FAILED: patch "[PATCH] smb: client: fix potential NULL deref in" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.14.y git checkout FETCH_HEAD git cherry-pick -x 92414333eb375ed64f4ae92d34d579e826936480 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023121142-pumice-symptom-baf9@gregkh' --subject-prefix 'PATCH 4.14.y' HEAD^.. Possible dependencies: 92414333eb37 ("smb: client: fix potential NULL deref in parse_dfs_referrals()") 38c8a9a52082 ("smb: move client and server files to common directory fs/smb") abdb1742a312 ("cifs: get rid of mount options string parsing") 9fd29a5bae6e ("cifs: use fs_context for automounts") 5dd8ce24667a ("cifs: missing directory in MAINTAINERS file") 332019e23a51 ("Merge tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 92414333eb375ed64f4ae92d34d579e826936480 Mon Sep 17 00:00:00 2001 From: Paulo Alcantara <pc(a)manguebit.com> Date: Tue, 5 Dec 2023 21:49:29 -0300 Subject: [PATCH] smb: client: fix potential NULL deref in parse_dfs_referrals() If server returned no data for FSCTL_DFS_GET_REFERRALS, @dfs_rsp will remain NULL and then parse_dfs_referrals() will dereference it. Fix this by returning -EIO when no output data is returned. Besides, we can't fix it in SMB2_ioctl() as some FSCTLs are allowed to return no data as per MS-SMB2 2.2.32. Fixes: 9d49640a21bf ("CIFS: implement get_dfs_refer for SMB2+") Cc: stable(a)vger.kernel.org Reported-by: Robert Morris <rtm(a)csail.mit.edu> Signed-off-by: Paulo Alcantara (SUSE) <pc(a)manguebit.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 45931115f475..fcfb6566b899 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -2836,6 +2836,8 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, usleep_range(512, 2048); } while (++retry_count < 5); + if (!rc && !dfs_rsp) + rc = -EIO; if (rc) { if (!is_retryable_error(rc) && rc != -ENOENT && rc != -EOPNOTSUPP) cifs_tcon_dbg(VFS, "%s: ioctl error: rc=%d\n", __func__, rc);

10 months, 2 weeks

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FAILED: patch "[PATCH] smb: client: fix potential NULL deref in" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y git checkout FETCH_HEAD git cherry-pick -x 92414333eb375ed64f4ae92d34d579e826936480 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023121141-decoy-kennel-84d0@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^.. Possible dependencies: 92414333eb37 ("smb: client: fix potential NULL deref in parse_dfs_referrals()") 38c8a9a52082 ("smb: move client and server files to common directory fs/smb") abdb1742a312 ("cifs: get rid of mount options string parsing") 9fd29a5bae6e ("cifs: use fs_context for automounts") 5dd8ce24667a ("cifs: missing directory in MAINTAINERS file") 332019e23a51 ("Merge tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 92414333eb375ed64f4ae92d34d579e826936480 Mon Sep 17 00:00:00 2001 From: Paulo Alcantara <pc(a)manguebit.com> Date: Tue, 5 Dec 2023 21:49:29 -0300 Subject: [PATCH] smb: client: fix potential NULL deref in parse_dfs_referrals() If server returned no data for FSCTL_DFS_GET_REFERRALS, @dfs_rsp will remain NULL and then parse_dfs_referrals() will dereference it. Fix this by returning -EIO when no output data is returned. Besides, we can't fix it in SMB2_ioctl() as some FSCTLs are allowed to return no data as per MS-SMB2 2.2.32. Fixes: 9d49640a21bf ("CIFS: implement get_dfs_refer for SMB2+") Cc: stable(a)vger.kernel.org Reported-by: Robert Morris <rtm(a)csail.mit.edu> Signed-off-by: Paulo Alcantara (SUSE) <pc(a)manguebit.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 45931115f475..fcfb6566b899 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -2836,6 +2836,8 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, usleep_range(512, 2048); } while (++retry_count < 5); + if (!rc && !dfs_rsp) + rc = -EIO; if (rc) { if (!is_retryable_error(rc) && rc != -ENOENT && rc != -EOPNOTSUPP) cifs_tcon_dbg(VFS, "%s: ioctl error: rc=%d\n", __func__, rc);

10 months, 2 weeks

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FAILED: patch "[PATCH] smb: client: fix potential NULL deref in" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 92414333eb375ed64f4ae92d34d579e826936480 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023121140-headed-subheader-5a54@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: 92414333eb37 ("smb: client: fix potential NULL deref in parse_dfs_referrals()") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 92414333eb375ed64f4ae92d34d579e826936480 Mon Sep 17 00:00:00 2001 From: Paulo Alcantara <pc(a)manguebit.com> Date: Tue, 5 Dec 2023 21:49:29 -0300 Subject: [PATCH] smb: client: fix potential NULL deref in parse_dfs_referrals() If server returned no data for FSCTL_DFS_GET_REFERRALS, @dfs_rsp will remain NULL and then parse_dfs_referrals() will dereference it. Fix this by returning -EIO when no output data is returned. Besides, we can't fix it in SMB2_ioctl() as some FSCTLs are allowed to return no data as per MS-SMB2 2.2.32. Fixes: 9d49640a21bf ("CIFS: implement get_dfs_refer for SMB2+") Cc: stable(a)vger.kernel.org Reported-by: Robert Morris <rtm(a)csail.mit.edu> Signed-off-by: Paulo Alcantara (SUSE) <pc(a)manguebit.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 45931115f475..fcfb6566b899 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -2836,6 +2836,8 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, usleep_range(512, 2048); } while (++retry_count < 5); + if (!rc && !dfs_rsp) + rc = -EIO; if (rc) { if (!is_retryable_error(rc) && rc != -ENOENT && rc != -EOPNOTSUPP) cifs_tcon_dbg(VFS, "%s: ioctl error: rc=%d\n", __func__, rc);

10 months, 2 weeks

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FAILED: patch "[PATCH] smb: client: fix potential NULL deref in" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 92414333eb375ed64f4ae92d34d579e826936480 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023121139-gully-bulge-51cb@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: 92414333eb37 ("smb: client: fix potential NULL deref in parse_dfs_referrals()") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 92414333eb375ed64f4ae92d34d579e826936480 Mon Sep 17 00:00:00 2001 From: Paulo Alcantara <pc(a)manguebit.com> Date: Tue, 5 Dec 2023 21:49:29 -0300 Subject: [PATCH] smb: client: fix potential NULL deref in parse_dfs_referrals() If server returned no data for FSCTL_DFS_GET_REFERRALS, @dfs_rsp will remain NULL and then parse_dfs_referrals() will dereference it. Fix this by returning -EIO when no output data is returned. Besides, we can't fix it in SMB2_ioctl() as some FSCTLs are allowed to return no data as per MS-SMB2 2.2.32. Fixes: 9d49640a21bf ("CIFS: implement get_dfs_refer for SMB2+") Cc: stable(a)vger.kernel.org Reported-by: Robert Morris <rtm(a)csail.mit.edu> Signed-off-by: Paulo Alcantara (SUSE) <pc(a)manguebit.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 45931115f475..fcfb6566b899 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -2836,6 +2836,8 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, usleep_range(512, 2048); } while (++retry_count < 5); + if (!rc && !dfs_rsp) + rc = -EIO; if (rc) { if (!is_retryable_error(rc) && rc != -ENOENT && rc != -EOPNOTSUPP) cifs_tcon_dbg(VFS, "%s: ioctl error: rc=%d\n", __func__, rc);

10 months, 2 weeks

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FAILED: patch "[PATCH] smb: client: fix potential NULL deref in" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 92414333eb375ed64f4ae92d34d579e826936480 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023121138-alias-goofiness-2060@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: 92414333eb37 ("smb: client: fix potential NULL deref in parse_dfs_referrals()") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 92414333eb375ed64f4ae92d34d579e826936480 Mon Sep 17 00:00:00 2001 From: Paulo Alcantara <pc(a)manguebit.com> Date: Tue, 5 Dec 2023 21:49:29 -0300 Subject: [PATCH] smb: client: fix potential NULL deref in parse_dfs_referrals() If server returned no data for FSCTL_DFS_GET_REFERRALS, @dfs_rsp will remain NULL and then parse_dfs_referrals() will dereference it. Fix this by returning -EIO when no output data is returned. Besides, we can't fix it in SMB2_ioctl() as some FSCTLs are allowed to return no data as per MS-SMB2 2.2.32. Fixes: 9d49640a21bf ("CIFS: implement get_dfs_refer for SMB2+") Cc: stable(a)vger.kernel.org Reported-by: Robert Morris <rtm(a)csail.mit.edu> Signed-off-by: Paulo Alcantara (SUSE) <pc(a)manguebit.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 45931115f475..fcfb6566b899 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -2836,6 +2836,8 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, usleep_range(512, 2048); } while (++retry_count < 5); + if (!rc && !dfs_rsp) + rc = -EIO; if (rc) { if (!is_retryable_error(rc) && rc != -ENOENT && rc != -EOPNOTSUPP) cifs_tcon_dbg(VFS, "%s: ioctl error: rc=%d\n", __func__, rc);

10 months, 2 weeks

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FAILED: patch "[PATCH] cifs: Fix non-availability of dedup breaking generic/304" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 691a41d8da4b34fe72f09393505f55f28a8f34ec # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023121111-grieving-paced-f285@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: 691a41d8da4b ("cifs: Fix non-availability of dedup breaking generic/304") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 691a41d8da4b34fe72f09393505f55f28a8f34ec Mon Sep 17 00:00:00 2001 From: David Howells <dhowells(a)redhat.com> Date: Mon, 4 Dec 2023 14:01:59 +0000 Subject: [PATCH] cifs: Fix non-availability of dedup breaking generic/304 Deduplication isn't supported on cifs, but cifs doesn't reject it, instead treating it as extent duplication/cloning. This can cause generic/304 to go silly and run for hours on end. Fix cifs to indicate EOPNOTSUPP if REMAP_FILE_DEDUP is set in ->remap_file_range(). Note that it's unclear whether or not commit b073a08016a1 is meant to cause cifs to return an error if REMAP_FILE_DEDUP. Fixes: b073a08016a1 ("cifs: fix that return -EINVAL when do dedupe operation") Cc: stable(a)vger.kernel.org Suggested-by: Dave Chinner <david(a)fromorbit.com> cc: Xiaoli Feng <fengxiaoli0714(a)gmail.com> cc: Shyam Prasad N <nspmangalore(a)gmail.com> cc: Rohith Surabattula <rohiths.msft(a)gmail.com> cc: Jeff Layton <jlayton(a)kernel.org> cc: Darrick Wong <darrick.wong(a)oracle.com> cc: fstests(a)vger.kernel.org cc: linux-cifs(a)vger.kernel.org cc: linux-fsdevel(a)vger.kernel.org Link: https://lore.kernel.org/r/3876191.1701555260@warthog.procyon.org.uk/ Signed-off-by: David Howells <dhowells(a)redhat.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c index c5fc0a35bb19..2131638f26d0 100644 --- a/fs/smb/client/cifsfs.c +++ b/fs/smb/client/cifsfs.c @@ -1277,7 +1277,9 @@ static loff_t cifs_remap_file_range(struct file *src_file, loff_t off, unsigned int xid; int rc; - if (remap_flags & ~(REMAP_FILE_DEDUP | REMAP_FILE_ADVISORY)) + if (remap_flags & REMAP_FILE_DEDUP) + return -EOPNOTSUPP; + if (remap_flags & ~REMAP_FILE_ADVISORY) return -EINVAL; cifs_dbg(FYI, "clone range\n");

10 months, 2 weeks

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FAILED: patch "[PATCH] cifs: Fix non-availability of dedup breaking generic/304" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 691a41d8da4b34fe72f09393505f55f28a8f34ec # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023121110-chirpy-relation-f6ad@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: 691a41d8da4b ("cifs: Fix non-availability of dedup breaking generic/304") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 691a41d8da4b34fe72f09393505f55f28a8f34ec Mon Sep 17 00:00:00 2001 From: David Howells <dhowells(a)redhat.com> Date: Mon, 4 Dec 2023 14:01:59 +0000 Subject: [PATCH] cifs: Fix non-availability of dedup breaking generic/304 Deduplication isn't supported on cifs, but cifs doesn't reject it, instead treating it as extent duplication/cloning. This can cause generic/304 to go silly and run for hours on end. Fix cifs to indicate EOPNOTSUPP if REMAP_FILE_DEDUP is set in ->remap_file_range(). Note that it's unclear whether or not commit b073a08016a1 is meant to cause cifs to return an error if REMAP_FILE_DEDUP. Fixes: b073a08016a1 ("cifs: fix that return -EINVAL when do dedupe operation") Cc: stable(a)vger.kernel.org Suggested-by: Dave Chinner <david(a)fromorbit.com> cc: Xiaoli Feng <fengxiaoli0714(a)gmail.com> cc: Shyam Prasad N <nspmangalore(a)gmail.com> cc: Rohith Surabattula <rohiths.msft(a)gmail.com> cc: Jeff Layton <jlayton(a)kernel.org> cc: Darrick Wong <darrick.wong(a)oracle.com> cc: fstests(a)vger.kernel.org cc: linux-cifs(a)vger.kernel.org cc: linux-fsdevel(a)vger.kernel.org Link: https://lore.kernel.org/r/3876191.1701555260@warthog.procyon.org.uk/ Signed-off-by: David Howells <dhowells(a)redhat.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c index c5fc0a35bb19..2131638f26d0 100644 --- a/fs/smb/client/cifsfs.c +++ b/fs/smb/client/cifsfs.c @@ -1277,7 +1277,9 @@ static loff_t cifs_remap_file_range(struct file *src_file, loff_t off, unsigned int xid; int rc; - if (remap_flags & ~(REMAP_FILE_DEDUP | REMAP_FILE_ADVISORY)) + if (remap_flags & REMAP_FILE_DEDUP) + return -EOPNOTSUPP; + if (remap_flags & ~REMAP_FILE_ADVISORY) return -EINVAL; cifs_dbg(FYI, "clone range\n");

10 months, 2 weeks

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FAILED: patch "[PATCH] cifs: Fix non-availability of dedup breaking generic/304" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 691a41d8da4b34fe72f09393505f55f28a8f34ec # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023121109-deranged-underhand-dc53@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: 691a41d8da4b ("cifs: Fix non-availability of dedup breaking generic/304") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 691a41d8da4b34fe72f09393505f55f28a8f34ec Mon Sep 17 00:00:00 2001 From: David Howells <dhowells(a)redhat.com> Date: Mon, 4 Dec 2023 14:01:59 +0000 Subject: [PATCH] cifs: Fix non-availability of dedup breaking generic/304 Deduplication isn't supported on cifs, but cifs doesn't reject it, instead treating it as extent duplication/cloning. This can cause generic/304 to go silly and run for hours on end. Fix cifs to indicate EOPNOTSUPP if REMAP_FILE_DEDUP is set in ->remap_file_range(). Note that it's unclear whether or not commit b073a08016a1 is meant to cause cifs to return an error if REMAP_FILE_DEDUP. Fixes: b073a08016a1 ("cifs: fix that return -EINVAL when do dedupe operation") Cc: stable(a)vger.kernel.org Suggested-by: Dave Chinner <david(a)fromorbit.com> cc: Xiaoli Feng <fengxiaoli0714(a)gmail.com> cc: Shyam Prasad N <nspmangalore(a)gmail.com> cc: Rohith Surabattula <rohiths.msft(a)gmail.com> cc: Jeff Layton <jlayton(a)kernel.org> cc: Darrick Wong <darrick.wong(a)oracle.com> cc: fstests(a)vger.kernel.org cc: linux-cifs(a)vger.kernel.org cc: linux-fsdevel(a)vger.kernel.org Link: https://lore.kernel.org/r/3876191.1701555260@warthog.procyon.org.uk/ Signed-off-by: David Howells <dhowells(a)redhat.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c index c5fc0a35bb19..2131638f26d0 100644 --- a/fs/smb/client/cifsfs.c +++ b/fs/smb/client/cifsfs.c @@ -1277,7 +1277,9 @@ static loff_t cifs_remap_file_range(struct file *src_file, loff_t off, unsigned int xid; int rc; - if (remap_flags & ~(REMAP_FILE_DEDUP | REMAP_FILE_ADVISORY)) + if (remap_flags & REMAP_FILE_DEDUP) + return -EOPNOTSUPP; + if (remap_flags & ~REMAP_FILE_ADVISORY) return -EINVAL; cifs_dbg(FYI, "clone range\n");

10 months, 2 weeks

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[PATCH 4.19 0/4] Generic netlink multicast fixes

by Ido Schimmel

Restrict two generic netlink multicast groups - in the "psample" and "NET_DM" families - to be root-only with the appropriate capabilities. Patch #1 is a dependency of patch #2 which is needed by the actual fixes in patches #3 and #4. Florian Westphal (1): netlink: don't call ->netlink_bind with table lock held Ido Schimmel (3): genetlink: add CAP_NET_ADMIN test for multicast bind psample: Require 'CAP_NET_ADMIN' when joining "packets" group drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group include/net/genetlink.h | 3 +++ net/core/drop_monitor.c | 4 +++- net/netlink/af_netlink.c | 4 ++-- net/netlink/genetlink.c | 35 +++++++++++++++++++++++++++++++++++ net/psample/psample.c | 3 ++- 5 files changed, 45 insertions(+), 4 deletions(-) -- 2.40.1

10 months, 2 weeks

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[PATCH 5.4 0/4] Generic netlink multicast fixes

by Ido Schimmel

Restrict two generic netlink multicast groups - in the "psample" and "NET_DM" families - to be root-only with the appropriate capabilities. Patch #1 is a dependency of patch #2 which is needed by the actual fixes in patches #3 and #4. Florian Westphal (1): netlink: don't call ->netlink_bind with table lock held Ido Schimmel (3): genetlink: add CAP_NET_ADMIN test for multicast bind psample: Require 'CAP_NET_ADMIN' when joining "packets" group drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group include/net/genetlink.h | 3 +++ net/core/drop_monitor.c | 4 +++- net/netlink/af_netlink.c | 4 ++-- net/netlink/genetlink.c | 35 +++++++++++++++++++++++++++++++++++ net/psample/psample.c | 3 ++- 5 files changed, 45 insertions(+), 4 deletions(-) -- 2.40.1

10 months, 2 weeks

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Linux-stable-mirror December 2023