June 2024 - Linux-stable-mirror

[PATCH] drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_hd_modes

by Ma Ke

In nv17_tv_get_hd_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a possible NULL pointer dereference on failure of drm_mode_duplicate(). The same applies to drm_cvt_mode(). Add a check to avoid null pointer dereference. Cc: stable(a)vger.kernel.org Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c index 670c9739e5e1..9c3dc9a5bb46 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c +++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c @@ -258,6 +258,8 @@ static int nv17_tv_get_hd_modes(struct drm_encoder *encoder, if (modes[i].hdisplay == output_mode->hdisplay && modes[i].vdisplay == output_mode->vdisplay) { mode = drm_mode_duplicate(encoder->dev, output_mode); + if (!mode) + continue; mode->type |= DRM_MODE_TYPE_PREFERRED; } else { @@ -265,6 +267,8 @@ static int nv17_tv_get_hd_modes(struct drm_encoder *encoder, modes[i].vdisplay, 60, false, (output_mode->flags & DRM_MODE_FLAG_INTERLACE), false); + if (!mode) + continue; } /* CVT modes are sometimes unsuitable... */ -- 2.25.1

8 months

3
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[PATCH] drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_ld_modes

by Ma Ke

In nv17_tv_get_ld_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a possible NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. Cc: stable(a)vger.kernel.org Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c index 670c9739e5e1..4a08e61f3336 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c +++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c @@ -209,6 +209,8 @@ static int nv17_tv_get_ld_modes(struct drm_encoder *encoder, struct drm_display_mode *mode; mode = drm_mode_duplicate(encoder->dev, tv_mode); + if (!mode) + continue; mode->clock = tv_norm->tv_enc_mode.vrefresh * mode->htotal / 1000 * -- 2.25.1

8 months

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FAILED: patch "[PATCH] selftests: mptcp: userspace_pm: fixed subtest names" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-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-6.6.y git checkout FETCH_HEAD git cherry-pick -x e874557fce1b6023efafd523aee0c347bf7f1694 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024062405-railway-unpack-e903@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: e874557fce1b ("selftests: mptcp: userspace_pm: fixed subtest names") 8ebb44196585 ("selftests: mptcp: print_test out of verify_listener_events") 2ef0d804c090 ("selftests: mptcp: userspace_pm: unique subtest names") 06848c0f341e ("selftests: mptcp: add evts_get_info helper") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From e874557fce1b6023efafd523aee0c347bf7f1694 Mon Sep 17 00:00:00 2001 From: "Matthieu Baerts (NGI0)" <matttbe(a)kernel.org> Date: Fri, 14 Jun 2024 19:15:29 +0200 Subject: [PATCH] selftests: mptcp: userspace_pm: fixed subtest names It is important to have fixed (sub)test names in TAP, because these names are used to identify them. If they are not fixed, tracking cannot be done. Some subtests from the userspace_pm selftest were using random numbers in their names: the client and server address IDs from $RANDOM, and the client port number randomly picked by the kernel when creating the connection. These values have been replaced by 'client' and 'server' words: that's even more helpful than showing random numbers. Note that the addresses IDs are incremented and decremented in the test: +1 or -1 are then displayed in these cases. Not to loose info that can be useful for debugging in case of issues, these random numbers are now displayed at the beginning of the test. Fixes: f589234e1af0 ("selftests: mptcp: userspace_pm: format subtests results in TAP") Cc: stable(a)vger.kernel.org Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Reviewed-by: Simon Horman <horms(a)kernel.org> Link: https://lore.kernel.org/r/20240614-upstream-net-20240614-selftests-mptcp-us… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh index 9e2981f2d7f5..9cb05978269d 100755 --- a/tools/testing/selftests/net/mptcp/userspace_pm.sh +++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh @@ -160,10 +160,12 @@ make_connection() local is_v6=$1 local app_port=$app4_port local connect_addr="10.0.1.1" + local client_addr="10.0.1.2" local listen_addr="0.0.0.0" if [ "$is_v6" = "v6" ] then connect_addr="dead:beef:1::1" + client_addr="dead:beef:1::2" listen_addr="::" app_port=$app6_port else @@ -206,6 +208,7 @@ make_connection() [ "$server_serverside" = 1 ] then test_pass + print_title "Connection info: ${client_addr}:${client_port} -> ${connect_addr}:${app_port}" else test_fail "Expected tokens (c:${client_token} - s:${server_token}) and server (c:${client_serverside} - s:${server_serverside})" mptcp_lib_result_print_all_tap @@ -297,7 +300,7 @@ test_announce() ip netns exec "$ns2"\ ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id $client_addr_id dev\ ns2eth1 - print_test "ADD_ADDR id:${client_addr_id} 10.0.2.2 (ns2) => ns1, reuse port" + print_test "ADD_ADDR id:client 10.0.2.2 (ns2) => ns1, reuse port" sleep 0.5 verify_announce_event $server_evts $ANNOUNCED $server4_token "10.0.2.2" $client_addr_id \ "$client4_port" @@ -306,7 +309,7 @@ test_announce() :>"$server_evts" ip netns exec "$ns2" ./pm_nl_ctl ann\ dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1 - print_test "ADD_ADDR6 id:${client_addr_id} dead:beef:2::2 (ns2) => ns1, reuse port" + print_test "ADD_ADDR6 id:client dead:beef:2::2 (ns2) => ns1, reuse port" sleep 0.5 verify_announce_event "$server_evts" "$ANNOUNCED" "$server6_token" "dead:beef:2::2"\ "$client_addr_id" "$client6_port" "v6" @@ -316,7 +319,7 @@ test_announce() client_addr_id=$((client_addr_id+1)) ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\ $client_addr_id dev ns2eth1 port $new4_port - print_test "ADD_ADDR id:${client_addr_id} 10.0.2.2 (ns2) => ns1, new port" + print_test "ADD_ADDR id:client+1 10.0.2.2 (ns2) => ns1, new port" sleep 0.5 verify_announce_event "$server_evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\ "$client_addr_id" "$new4_port" @@ -327,7 +330,7 @@ test_announce() # ADD_ADDR from the server to client machine reusing the subflow port ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\ $server_addr_id dev ns1eth2 - print_test "ADD_ADDR id:${server_addr_id} 10.0.2.1 (ns1) => ns2, reuse port" + print_test "ADD_ADDR id:server 10.0.2.1 (ns1) => ns2, reuse port" sleep 0.5 verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\ "$server_addr_id" "$app4_port" @@ -336,7 +339,7 @@ test_announce() :>"$client_evts" ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\ $server_addr_id dev ns1eth2 - print_test "ADD_ADDR6 id:${server_addr_id} dead:beef:2::1 (ns1) => ns2, reuse port" + print_test "ADD_ADDR6 id:server dead:beef:2::1 (ns1) => ns2, reuse port" sleep 0.5 verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "dead:beef:2::1"\ "$server_addr_id" "$app6_port" "v6" @@ -346,7 +349,7 @@ test_announce() server_addr_id=$((server_addr_id+1)) ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\ $server_addr_id dev ns1eth2 port $new4_port - print_test "ADD_ADDR id:${server_addr_id} 10.0.2.1 (ns1) => ns2, new port" + print_test "ADD_ADDR id:server+1 10.0.2.1 (ns1) => ns2, new port" sleep 0.5 verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\ "$server_addr_id" "$new4_port" @@ -380,7 +383,7 @@ test_remove() local invalid_token=$(( client4_token - 1 )) ip netns exec "$ns2" ./pm_nl_ctl rem token $invalid_token id\ $client_addr_id > /dev/null 2>&1 - print_test "RM_ADDR id:${client_addr_id} ns2 => ns1, invalid token" + print_test "RM_ADDR id:client ns2 => ns1, invalid token" local type type=$(mptcp_lib_evts_get_info type "$server_evts") if [ "$type" = "" ] @@ -394,7 +397,7 @@ test_remove() local invalid_id=$(( client_addr_id + 1 )) ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\ $invalid_id > /dev/null 2>&1 - print_test "RM_ADDR id:${invalid_id} ns2 => ns1, invalid id" + print_test "RM_ADDR id:client+1 ns2 => ns1, invalid id" type=$(mptcp_lib_evts_get_info type "$server_evts") if [ "$type" = "" ] then @@ -407,7 +410,7 @@ test_remove() :>"$server_evts" ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\ $client_addr_id - print_test "RM_ADDR id:${client_addr_id} ns2 => ns1" + print_test "RM_ADDR id:client ns2 => ns1" sleep 0.5 verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id" @@ -416,7 +419,7 @@ test_remove() client_addr_id=$(( client_addr_id - 1 )) ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\ $client_addr_id - print_test "RM_ADDR id:${client_addr_id} ns2 => ns1" + print_test "RM_ADDR id:client-1 ns2 => ns1" sleep 0.5 verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id" @@ -424,7 +427,7 @@ test_remove() :>"$server_evts" ip netns exec "$ns2" ./pm_nl_ctl rem token "$client6_token" id\ $client_addr_id - print_test "RM_ADDR6 id:${client_addr_id} ns2 => ns1" + print_test "RM_ADDR6 id:client-1 ns2 => ns1" sleep 0.5 verify_remove_event "$server_evts" "$REMOVED" "$server6_token" "$client_addr_id" @@ -434,7 +437,7 @@ test_remove() # RM_ADDR from the server to client machine ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\ $server_addr_id - print_test "RM_ADDR id:${server_addr_id} ns1 => ns2" + print_test "RM_ADDR id:server ns1 => ns2" sleep 0.5 verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id" @@ -443,7 +446,7 @@ test_remove() server_addr_id=$(( server_addr_id - 1 )) ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\ $server_addr_id - print_test "RM_ADDR id:${server_addr_id} ns1 => ns2" + print_test "RM_ADDR id:server-1 ns1 => ns2" sleep 0.5 verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id" @@ -451,7 +454,7 @@ test_remove() :>"$client_evts" ip netns exec "$ns1" ./pm_nl_ctl rem token "$server6_token" id\ $server_addr_id - print_test "RM_ADDR6 id:${server_addr_id} ns1 => ns2" + print_test "RM_ADDR6 id:server-1 ns1 => ns2" sleep 0.5 verify_remove_event "$client_evts" "$REMOVED" "$client6_token" "$server_addr_id" } @@ -479,8 +482,14 @@ verify_subflow_events() local locid local remid local info + local e_dport_txt - info="${e_saddr} (${e_from}) => ${e_daddr}:${e_dport} (${e_to})" + # only display the fixed ports + if [ "${e_dport}" -ge "${app4_port}" ] && [ "${e_dport}" -le "${app6_port}" ]; then + e_dport_txt=":${e_dport}" + fi + + info="${e_saddr} (${e_from}) => ${e_daddr}${e_dport_txt} (${e_to})" if [ "$e_type" = "$SUB_ESTABLISHED" ] then @@ -766,7 +775,7 @@ test_subflows_v4_v6_mix() :>"$client_evts" ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server6_token" id\ $server_addr_id dev ns1eth2 - print_test "ADD_ADDR4 id:${server_addr_id} 10.0.2.1 (ns1) => ns2, reuse port" + print_test "ADD_ADDR4 id:server 10.0.2.1 (ns1) => ns2, reuse port" sleep 0.5 verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "10.0.2.1"\ "$server_addr_id" "$app6_port" @@ -861,7 +870,7 @@ test_listener() local listener_pid=$! sleep 0.5 - print_test "CREATE_LISTENER 10.0.2.2:$client4_port" + print_test "CREATE_LISTENER 10.0.2.2 (client port)" verify_listener_events $client_evts $LISTENER_CREATED $AF_INET 10.0.2.2 $client4_port # ADD_ADDR from client to server machine reusing the subflow port @@ -878,13 +887,14 @@ test_listener() mptcp_lib_kill_wait $listener_pid sleep 0.5 - print_test "CLOSE_LISTENER 10.0.2.2:$client4_port" + print_test "CLOSE_LISTENER 10.0.2.2 (client port)" verify_listener_events $client_evts $LISTENER_CLOSED $AF_INET 10.0.2.2 $client4_port } print_title "Make connections" make_connection make_connection "v6" +print_title "Will be using address IDs ${client_addr_id} (client) and ${server_addr_id} (server)" test_announce test_remove

8 months

2
3
0 0

[PATCH v2] serial: 8250_omap: Fix Errata i2310 with RX FIFO level check

by Udit Kumar

Errata i2310[0] says, Erroneous timeout can be triggered, if this Erroneous interrupt is not cleared then it may leads to storm of interrupts. Commit 9d141c1e6157 ("serial: 8250_omap: Implementation of Errata i2310") which added the workaround but missed ensuring RX FIFO is really empty before applying the errata workaround as recommended in the errata text. Fix this by adding back check for UART_OMAP_RX_LVL to be 0 for workaround to take effect. [0] https://www.ti.com/lit/pdf/sprz536 page 23 Fixes: 9d141c1e6157 ("serial: 8250_omap: Implementation of Errata i2310") Cc: stable(a)vger.kernel.org Reported-by: Vignesh Raghavendra <vigneshr(a)ti.com> Closes: https://lore.kernel.org/all/e96d0c55-0b12-4cbf-9d23-48963543de49@ti.com/ Signed-off-by: Udit Kumar <u-kumar1(a)ti.com> --- Testlogs https://gist.github.com/uditkumarti/4f5120f203a238fbebe411eb82b63753 Changelog: Changes in v2 - Update commit message, subject, Fixes tag link to v1: https://lore.kernel.org/all/20240625051338.2761599-1-u-kumar1@ti.com/ drivers/tty/serial/8250/8250_omap.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index ddac0a13cf84..1af9aed99c65 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -672,7 +672,8 @@ static irqreturn_t omap8250_irq(int irq, void *dev_id) * https://www.ti.com/lit/pdf/sprz536 */ if (priv->habit & UART_RX_TIMEOUT_QUIRK && - (iir & UART_IIR_RX_TIMEOUT) == UART_IIR_RX_TIMEOUT) { + (iir & UART_IIR_RX_TIMEOUT) == UART_IIR_RX_TIMEOUT && + serial_port_in(port, UART_OMAP_RX_LVL) == 0) { unsigned char efr2, timeout_h, timeout_l; efr2 = serial_in(up, UART_OMAP_EFR2); -- 2.34.1

8 months

1
0
0 0

Re: [PATCH 6.9 000/250] 6.9.7-rc1 review

by Ronald Warsow

Hi Greg no regressions here on x86_64 (RKL, Intel 11th Gen. CPU) Thanks Tested-by: Ronald Warsow <rwarsow(a)gmx.de>

8 months

1
0
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Re: [PATCH 6.6 100/192] netfilter: move the sysctl nf_hooks_lwtunnel into the netfilter core

by wujianguo

Hi Greg, This commit causes a compilation error when CONFIG_SYSFS is not enabled in config I have sent a fix patch: https://lkml.org/lkml/2024/6/21/123 在 2024/6/25 17:32, Greg Kroah-Hartman 写道: > 6.6-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Jianguo Wu <wujianguo(a)chinatelecom.cn> > > [ Upstream commit a2225e0250c5fa397dcebf6ce65a9f05a114e0cf ] > > Currently, the sysctl net.netfilter.nf_hooks_lwtunnel depends on the > nf_conntrack module, but the nf_conntrack module is not always loaded. > Therefore, accessing net.netfilter.nf_hooks_lwtunnel may have an error. > > Move sysctl nf_hooks_lwtunnel into the netfilter core. > > Fixes: 7a3f5b0de364 ("netfilter: add netfilter hooks to SRv6 data plane") > Suggested-by: Pablo Neira Ayuso <pablo(a)netfilter.org> > Signed-off-by: Jianguo Wu <wujianguo(a)chinatelecom.cn> > Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> > Signed-off-by: Sasha Levin <sashal(a)kernel.org> > --- > include/net/netns/netfilter.h | 3 + > net/netfilter/core.c | 13 +++++- > net/netfilter/nf_conntrack_standalone.c | 15 ------- > net/netfilter/nf_hooks_lwtunnel.c | 67 ++++++++++++++++++++++++++++++++ > net/netfilter/nf_internals.h | 6 ++ > 5 files changed, 87 insertions(+), 17 deletions(-) > > --- a/include/net/netns/netfilter.h > +++ b/include/net/netns/netfilter.h > @@ -15,6 +15,9 @@ struct netns_nf { > const struct nf_logger __rcu *nf_loggers[NFPROTO_NUMPROTO]; > #ifdef CONFIG_SYSCTL > struct ctl_table_header *nf_log_dir_header; > +#ifdef CONFIG_LWTUNNEL > + struct ctl_table_header *nf_lwtnl_dir_header; > +#endif > #endif > struct nf_hook_entries __rcu *hooks_ipv4[NF_INET_NUMHOOKS]; > struct nf_hook_entries __rcu *hooks_ipv6[NF_INET_NUMHOOKS]; > --- a/net/netfilter/core.c > +++ b/net/netfilter/core.c > @@ -815,12 +815,21 @@ int __init netfilter_init(void) > if (ret < 0) > goto err; > > +#ifdef CONFIG_LWTUNNEL > + ret = netfilter_lwtunnel_init(); > + if (ret < 0) > + goto err_lwtunnel_pernet; > +#endif > ret = netfilter_log_init(); > if (ret < 0) > - goto err_pernet; > + goto err_log_pernet; > > return 0; > -err_pernet: > +err_log_pernet: > +#ifdef CONFIG_LWTUNNEL > + netfilter_lwtunnel_fini(); > +err_lwtunnel_pernet: > +#endif > unregister_pernet_subsys(&netfilter_net_ops); > err: > return ret; > --- a/net/netfilter/nf_conntrack_standalone.c > +++ b/net/netfilter/nf_conntrack_standalone.c > @@ -22,9 +22,6 @@ > #include <net/netfilter/nf_conntrack_acct.h> > #include <net/netfilter/nf_conntrack_zones.h> > #include <net/netfilter/nf_conntrack_timestamp.h> > -#ifdef CONFIG_LWTUNNEL > -#include <net/netfilter/nf_hooks_lwtunnel.h> > -#endif > #include <linux/rculist_nulls.h> > > static bool enable_hooks __read_mostly; > @@ -612,9 +609,6 @@ enum nf_ct_sysctl_index { > NF_SYSCTL_CT_PROTO_TIMEOUT_GRE, > NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM, > #endif > -#ifdef CONFIG_LWTUNNEL > - NF_SYSCTL_CT_LWTUNNEL, > -#endif > > __NF_SYSCTL_CT_LAST_SYSCTL, > }; > @@ -948,15 +942,6 @@ static struct ctl_table nf_ct_sysctl_tab > .proc_handler = proc_dointvec_jiffies, > }, > #endif > -#ifdef CONFIG_LWTUNNEL > - [NF_SYSCTL_CT_LWTUNNEL] = { > - .procname = "nf_hooks_lwtunnel", > - .data = NULL, > - .maxlen = sizeof(int), > - .mode = 0644, > - .proc_handler = nf_hooks_lwtunnel_sysctl_handler, > - }, > -#endif > {} > }; > > --- a/net/netfilter/nf_hooks_lwtunnel.c > +++ b/net/netfilter/nf_hooks_lwtunnel.c > @@ -3,6 +3,9 @@ > #include <linux/sysctl.h> > #include <net/lwtunnel.h> > #include <net/netfilter/nf_hooks_lwtunnel.h> > +#include <linux/netfilter.h> > + > +#include "nf_internals.h" > > static inline int nf_hooks_lwtunnel_get(void) > { > @@ -50,4 +53,68 @@ int nf_hooks_lwtunnel_sysctl_handler(str > return ret; > } > EXPORT_SYMBOL_GPL(nf_hooks_lwtunnel_sysctl_handler); > + > +static struct ctl_table nf_lwtunnel_sysctl_table[] = { > + { > + .procname = "nf_hooks_lwtunnel", > + .data = NULL, > + .maxlen = sizeof(int), > + .mode = 0644, > + .proc_handler = nf_hooks_lwtunnel_sysctl_handler, > + }, > +}; > + > +static int __net_init nf_lwtunnel_net_init(struct net *net) > +{ > + struct ctl_table_header *hdr; > + struct ctl_table *table; > + > + table = nf_lwtunnel_sysctl_table; > + if (!net_eq(net, &init_net)) { > + table = kmemdup(nf_lwtunnel_sysctl_table, > + sizeof(nf_lwtunnel_sysctl_table), > + GFP_KERNEL); > + if (!table) > + goto err_alloc; > + } > + > + hdr = register_net_sysctl_sz(net, "net/netfilter", table, > + ARRAY_SIZE(nf_lwtunnel_sysctl_table)); > + if (!hdr) > + goto err_reg; > + > + net->nf.nf_lwtnl_dir_header = hdr; > + > + return 0; > +err_reg: > + if (!net_eq(net, &init_net)) > + kfree(table); > +err_alloc: > + return -ENOMEM; > +} > + > +static void __net_exit nf_lwtunnel_net_exit(struct net *net) > +{ > + const struct ctl_table *table; > + > + table = net->nf.nf_lwtnl_dir_header->ctl_table_arg; > + unregister_net_sysctl_table(net->nf.nf_lwtnl_dir_header); > + if (!net_eq(net, &init_net)) > + kfree(table); > +} > + > +static struct pernet_operations nf_lwtunnel_net_ops = { > + .init = nf_lwtunnel_net_init, > + .exit = nf_lwtunnel_net_exit, > +}; > + > +int __init netfilter_lwtunnel_init(void) > +{ > + return register_pernet_subsys(&nf_lwtunnel_net_ops); > +} > + > +void netfilter_lwtunnel_fini(void) > +{ > + unregister_pernet_subsys(&nf_lwtunnel_net_ops); > +} > #endif /* CONFIG_SYSCTL */ > --- a/net/netfilter/nf_internals.h > +++ b/net/netfilter/nf_internals.h > @@ -29,6 +29,12 @@ void nf_queue_nf_hook_drop(struct net *n > /* nf_log.c */ > int __init netfilter_log_init(void); > > +#ifdef CONFIG_LWTUNNEL > +/* nf_hooks_lwtunnel.c */ > +int __init netfilter_lwtunnel_init(void); > +void netfilter_lwtunnel_fini(void); > +#endif > + > /* core.c */ > void nf_hook_entries_delete_raw(struct nf_hook_entries __rcu **pp, > const struct nf_hook_ops *reg); > > >

8 months

3
3
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[PATCH v2] aoe: fix the potential use-after-free problem in more places

by Chun-Yi Lee

For fixing CVE-2023-6270, f98364e92662 ("aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts") makes tx() calling dev_put() instead of doing in aoecmd_cfg_pkts(). It avoids that the tx() runs into use-after-free. Then Nicolai Stange found more places in aoe have potential use-after-free problem with tx(). e.g. revalidate(), aoecmd_ata_rw(), resend(), probe() and aoecmd_cfg_rsp(). Those functions also use aoenet_xmit() to push packet to tx queue. So they should also use dev_hold() to increase the refcnt of skb->dev. Link: https://nvd.nist.gov/vuln/detail/CVE-2023-6270 Fixes: f98364e92662 ("aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts") Reported-by: Nicolai Stange <nstange(a)suse.com> Signed-off-by: Chun-Yi Lee <jlee(a)suse.com> --- v2: - Improve patch description - Improved wording - Add oneline summary of the commit f98364e92662 - Used curly brackets in the if-else blocks. drivers/block/aoe/aoecmd.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index cc9077b588d7..d1f4ddc57645 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -361,6 +361,7 @@ ata_rw_frameinit(struct frame *f) } ah->cmdstat = ATA_CMD_PIO_READ | writebit | extbit; + dev_hold(t->ifp->nd); skb->dev = t->ifp->nd; } @@ -401,6 +402,8 @@ aoecmd_ata_rw(struct aoedev *d) __skb_queue_head_init(&queue); __skb_queue_tail(&queue, skb); aoenet_xmit(&queue); + } else { + dev_put(f->t->ifp->nd); } return 1; } @@ -483,10 +486,13 @@ resend(struct aoedev *d, struct frame *f) memcpy(h->dst, t->addr, sizeof h->dst); memcpy(h->src, t->ifp->nd->dev_addr, sizeof h->src); + dev_hold(t->ifp->nd); skb->dev = t->ifp->nd; skb = skb_clone(skb, GFP_ATOMIC); - if (skb == NULL) + if (skb == NULL) { + dev_put(t->ifp->nd); return; + } f->sent = ktime_get(); __skb_queue_head_init(&queue); __skb_queue_tail(&queue, skb); @@ -617,6 +623,8 @@ probe(struct aoetgt *t) __skb_queue_head_init(&queue); __skb_queue_tail(&queue, skb); aoenet_xmit(&queue); + } else { + dev_put(f->t->ifp->nd); } } @@ -1395,6 +1403,7 @@ aoecmd_ata_id(struct aoedev *d) ah->cmdstat = ATA_CMD_ID_ATA; ah->lba3 = 0xa0; + dev_hold(t->ifp->nd); skb->dev = t->ifp->nd; d->rttavg = RTTAVG_INIT; @@ -1404,6 +1413,8 @@ aoecmd_ata_id(struct aoedev *d) skb = skb_clone(skb, GFP_ATOMIC); if (skb) f->sent = ktime_get(); + else + dev_put(t->ifp->nd); return skb; } -- 2.35.3

8 months

6
12
0 0

[PATCH] ata: libata-core: Add ATA_HORKAGE_NOLPM for all Crucial BX SSD1 models

by Niklas Cassel

We got another report that CT1000BX500SSD1 does not work with LPM. If you look in libata-core.c, we have six different Crucial devices that are marked with ATA_HORKAGE_NOLPM. This model would have been the seventh. (This quirk is used on Crucial models starting with both CT* and Crucial_CT*) It is obvious that this vendor does not have a great history of supporting LPM properly, therefore, add the ATA_HORKAGE_NOLPM quirk for all Crucial BX SSD1 models. Fixes: 7627a0edef54 ("ata: ahci: Drop low power policy board type") Cc: stable(a)vger.kernel.org Reported-by: Tkd-Alex <alex.tkd.alex(a)gmail.com> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218832 Signed-off-by: Niklas Cassel <cassel(a)kernel.org> --- drivers/ata/libata-core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index e1bf8a19b3c8..efb5195da60c 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4137,8 +4137,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "PIONEER BD-RW BDR-205", NULL, ATA_HORKAGE_NOLPM }, /* Crucial devices with broken LPM support */ - { "CT500BX100SSD1", NULL, ATA_HORKAGE_NOLPM }, - { "CT240BX500SSD1", NULL, ATA_HORKAGE_NOLPM }, + { "CT*0BX*00SSD1", NULL, ATA_HORKAGE_NOLPM }, /* 512GB MX100 with MU01 firmware has both queued TRIM and LPM issues */ { "Crucial_CT512MX100*", "MU01", ATA_HORKAGE_NO_NCQ_TRIM | -- 2.45.2

8 months

2
2
0 0

[PATCH v4 3/5] mei: vsc: Utilize the appropriate byte order swap function

by Wentong Wu

Switch from cpu_to_be32_array() to be32_to_cpu_array() for the received ROM data. Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device") Cc: stable(a)vger.kernel.org # for 6.8+ Signed-off-by: Wentong Wu <wentong.wu(a)intel.com> Tested-by: Jason Chen <jason.z.chen(a)intel.com> --- drivers/misc/mei/vsc-tp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/mei/vsc-tp.c b/drivers/misc/mei/vsc-tp.c index 5f3195636e53..876330474444 100644 --- a/drivers/misc/mei/vsc-tp.c +++ b/drivers/misc/mei/vsc-tp.c @@ -336,7 +336,7 @@ int vsc_tp_rom_xfer(struct vsc_tp *tp, const void *obuf, void *ibuf, size_t len) return ret; if (ibuf) - cpu_to_be32_array(ibuf, tp->rx_buf, words); + be32_to_cpu_array(ibuf, tp->rx_buf, words); return ret; } -- 2.34.1

8 months

2
1
0 0

[PATCH v4 2/5] mei: vsc: Prevent timeout error with added delay post-firmware download

by Wentong Wu

After completing the firmware download, the firmware requires some time to become functional. This change introduces additional sleep time before the first read operation to prevent a confusing timeout error in vsc_tp_xfer(). Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device") Cc: stable(a)vger.kernel.org # for 6.8+ Signed-off-by: Wentong Wu <wentong.wu(a)intel.com> Tested-by: Jason Chen <jason.z.chen(a)intel.com> --- drivers/misc/mei/platform-vsc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/misc/mei/platform-vsc.c b/drivers/misc/mei/platform-vsc.c index 1ec65d87488a..d02f6e881139 100644 --- a/drivers/misc/mei/platform-vsc.c +++ b/drivers/misc/mei/platform-vsc.c @@ -28,8 +28,8 @@ #define MEI_VSC_MAX_MSG_SIZE 512 -#define MEI_VSC_POLL_DELAY_US (50 * USEC_PER_MSEC) -#define MEI_VSC_POLL_TIMEOUT_US (200 * USEC_PER_MSEC) +#define MEI_VSC_POLL_DELAY_US (100 * USEC_PER_MSEC) +#define MEI_VSC_POLL_TIMEOUT_US (400 * USEC_PER_MSEC) #define mei_dev_to_vsc_hw(dev) ((struct mei_vsc_hw *)((dev)->hw)) -- 2.34.1

8 months

2
1
0 0

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