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[openeuler:OLK-5.10 25831/30000] drivers/gpu/drm/phytium/phytium_dp.c:300:17: warning: 'strncpy' output may be truncated copying 32 bytes from a string of length 439
by kernel test robot 04 Mar '24

04 Mar '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 6adee00913b51cd59245584085cdaca64f74465c commit: b2a83bcdafcaaaa60199147d04798d431cc800cc [25831/30000] DRM: Phytium display DRM driver config: arm64-randconfig-002-20240302 (https://download.01.org/0day-ci/archive/20240304/202403041133.ZJq3J9Jk-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240304/202403041133.ZJq3J9Jk-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202403041133.ZJq3J9Jk-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/gpu/drm/phytium/phytium_dp.c:503:6: warning: no previous prototype for 'phytium_dp_coding_8b10b_need_enable' [-Wmissing-prototypes] 503 | bool phytium_dp_coding_8b10b_need_enable(unsigned char test_pattern) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:520:6: warning: no previous prototype for 'phytium_dp_scrambled_need_enable' [-Wmissing-prototypes] 520 | bool phytium_dp_scrambled_need_enable(unsigned char test_pattern) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:653:6: warning: no previous prototype for 'phytium_dp_hw_enable_audio' [-Wmissing-prototypes] 653 | void phytium_dp_hw_enable_audio(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:822:6: warning: no previous prototype for 'phytium_dp_hw_disable_video' [-Wmissing-prototypes] 822 | void phytium_dp_hw_disable_video(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:833:6: warning: no previous prototype for 'phytium_dp_hw_video_is_enable' [-Wmissing-prototypes] 833 | bool phytium_dp_hw_video_is_enable(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:844:6: warning: no previous prototype for 'phytium_dp_hw_enable_video' [-Wmissing-prototypes] 844 | void phytium_dp_hw_enable_video(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:856:6: warning: no previous prototype for 'phytium_dp_hw_config_video' [-Wmissing-prototypes] 856 | void phytium_dp_hw_config_video(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:945:6: warning: no previous prototype for 'phytium_dp_hw_disable_output' [-Wmissing-prototypes] 945 | void phytium_dp_hw_disable_output(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:957:6: warning: no previous prototype for 'phytium_dp_hw_enable_output' [-Wmissing-prototypes] 957 | void phytium_dp_hw_enable_output(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:969:6: warning: no previous prototype for 'phytium_dp_hw_enable_input_source' [-Wmissing-prototypes] 969 | void phytium_dp_hw_enable_input_source(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:980:6: warning: no previous prototype for 'phytium_dp_hw_disable_input_source' [-Wmissing-prototypes] 980 | void phytium_dp_hw_disable_input_source(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:990:6: warning: no previous prototype for 'phytium_dp_hw_output_is_enable' [-Wmissing-prototypes] 990 | bool phytium_dp_hw_output_is_enable(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:1027:6: warning: no previous prototype for 'phytium_dp_hw_hpd_irq_setup' [-Wmissing-prototypes] 1027 | void phytium_dp_hw_hpd_irq_setup(struct phytium_dp_device *phytium_dp, bool enable) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:1042:5: warning: no previous prototype for 'phytium_dp_hw_init' [-Wmissing-prototypes] 1042 | int phytium_dp_hw_init(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:1220:6: warning: no previous prototype for 'phytium_dp_dpcd_sink_dpms' [-Wmissing-prototypes] 1220 | void phytium_dp_dpcd_sink_dpms(struct phytium_dp_device *phytium_dp, int mode) | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:1445:5: warning: no previous prototype for 'phytium_dp_get_link_train_fallback_values' [-Wmissing-prototypes] 1445 | int phytium_dp_get_link_train_fallback_values(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:1494:5: warning: no previous prototype for 'phytium_dp_start_link_train' [-Wmissing-prototypes] 1494 | int phytium_dp_start_link_train(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:1799:6: warning: no previous prototype for 'phytium_dp_hpd_poll_handler' [-Wmissing-prototypes] 1799 | void phytium_dp_hpd_poll_handler(struct phytium_display_private *priv) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:1946:6: warning: no previous prototype for 'phytium_dp_fast_link_train' [-Wmissing-prototypes] 1946 | bool phytium_dp_fast_link_train(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:2137:6: warning: no previous prototype for 'phytium_dp_adjust_link_train_parameter' [-Wmissing-prototypes] 2137 | void phytium_dp_adjust_link_train_parameter(struct phytium_dp_device *phytium_dp) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:2197:1: warning: no previous prototype for 'phytium_encoder_mode_valid' [-Wmissing-prototypes] 2197 | phytium_encoder_mode_valid(struct drm_encoder *encoder, const struct drm_display_mode *mode) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c:2447:5: warning: no previous prototype for 'phytium_get_encoder_crtc_mask' [-Wmissing-prototypes] 2447 | int phytium_get_encoder_crtc_mask(struct phytium_dp_device *phytium_dp, int port) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_dp.c: In function 'phytium_connector_add_common_modes': >> drivers/gpu/drm/phytium/phytium_dp.c:300:17: warning: 'strncpy' output may be truncated copying 32 bytes from a string of length 439 [-Wstringop-truncation] 300 | strncpy(mode->name, common_mode[i].name, DRM_DISPLAY_MODE_LEN); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/strncpy +300 drivers/gpu/drm/phytium/phytium_dp.c 244 245 static int phytium_connector_add_common_modes(struct phytium_dp_device *phytium_dp) 246 { 247 int i = 0, ret = 0; 248 struct drm_device *dev = phytium_dp->dev; 249 struct drm_display_mode *mode = NULL, *current_mode = NULL; 250 struct drm_display_mode *native_mode = &phytium_dp->native_mode; 251 bool mode_existed = false; 252 struct mode_size { 253 char name[DRM_DISPLAY_MODE_LEN]; 254 int w; 255 int h; 256 } common_mode[] = { 257 { "640x480", 640, 480}, 258 { "800x600", 800, 600}, 259 { "1024x768", 1024, 768}, 260 { "1280x720", 1280, 720}, 261 { "1280x800", 1280, 800}, 262 {"1280x1024", 1280, 1024}, 263 { "1440x900", 1440, 900}, 264 {"1680x1050", 1680, 1050}, 265 {"1600x1200", 1600, 1200}, 266 {"1920x1080", 1920, 1080}, 267 {"1920x1200", 1920, 1200} 268 }; 269 270 if (native_mode->clock == 0) 271 return ret; 272 273 for (i = 0; i < ARRAY_SIZE(common_mode); i++) { 274 mode_existed = false; 275 276 if (common_mode[i].w > native_mode->hdisplay || 277 common_mode[i].h > native_mode->vdisplay || 278 (common_mode[i].w == native_mode->hdisplay && 279 common_mode[i].h == native_mode->vdisplay)) 280 continue; 281 282 list_for_each_entry(current_mode, &phytium_dp->connector.probed_modes, head) { 283 if (common_mode[i].w == current_mode->hdisplay && 284 common_mode[i].h == current_mode->vdisplay) { 285 mode_existed = true; 286 break; 287 } 288 } 289 290 if (mode_existed) 291 continue; 292 293 mode = drm_mode_duplicate(dev, native_mode); 294 if (mode == NULL) 295 continue; 296 297 mode->hdisplay = common_mode[i].w; 298 mode->vdisplay = common_mode[i].h; 299 mode->type &= ~DRM_MODE_TYPE_PREFERRED; > 300 strncpy(mode->name, common_mode[i].name, DRM_DISPLAY_MODE_LEN); 301 drm_mode_probed_add(&phytium_dp->connector, mode); 302 ret++; 303 } 304 305 return ret; 306 } 307 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS 0/1] i2c: validate user data in compat ioctl
by Hongbo Li 04 Mar '24

04 Mar '24

Fix CVE-2021-46934 Pavel Skripkin (1): i2c: validate user data in compat ioctl drivers/i2c/i2c-dev.c | 3 +++ 1 file changed, 3 insertions(+) -- 2.34.1

2 2

[PATCH v3 openEuler-1.0-LTS] media: dvbdev: Fix memory leak in dvb_media_device_free()
by Wenyu Huang 04 Mar '24

04 Mar '24

From: Peilin Ye <yepeilin.cs(a)gmail.com> stable inclusion from stable-v4.19.308 commit cd89f79be5d553c78202f686e8e4caa5fbe94e98 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I949D9 CVE: CVE-2020-36777 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit bf9a40ae8d722f281a2721779595d6df1c33a0bf upstream. dvb_media_device_free() is leaking memory. Free `dvbdev->adapter->conn` before setting it to NULL, as documented in include/media/media-device.h: "The media_entity instance itself must be freed explicitly by the driver if required." Link: https://syzkaller.appspot.com/bug?id=9bbe4b842c98f0ed05c5eed77a226e9de33bf2… Link: https://lore.kernel.org/linux-media/20201211083039.521617-1-yepeilin.cs@gma… Cc: stable(a)vger.kernel.org Fixes: 0230d60e4661 ("[media] dvbdev: Add RF connector if needed") Reported-by: syzbot+7f09440acc069a0d38ac(a)syzkaller.appspotmail.com Signed-off-by: Peilin Ye <yepeilin.cs(a)gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wenyu Huang <huangwenyu5(a)huawei.com> --- drivers/media/dvb-core/dvbdev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c index a7d57ff7c88b..4b562238749d 100644 --- a/drivers/media/dvb-core/dvbdev.c +++ b/drivers/media/dvb-core/dvbdev.c @@ -242,6 +242,7 @@ static void dvb_media_device_free(struct dvb_device *dvbdev) if (dvbdev->adapter->conn) { media_device_unregister_entity(dvbdev->adapter->conn); + kfree(dvbdev->adapter->conn); dvbdev->adapter->conn = NULL; kfree(dvbdev->adapter->conn_pads); dvbdev->adapter->conn_pads = NULL; -- 2.34.1

2 1

[openeuler:OLK-6.6 2180/3769] kernel/sched/fair.c:8988:1: sparse: sparse: symbol 'qos_smt_expell_switch' was not declared. Should it be static?
by kernel test robot 04 Mar '24

04 Mar '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: fbcd4a3032a53350f6d182c9daeaa4c46e65d964 commit: a62d532da0b51fe39f726c4c08f3debc8b3bc5d7 [2180/3769] sched/fair: Add cmdline nosmtexpell config: arm64-randconfig-r111-20240227 (https://download.01.org/0day-ci/archive/20240304/202403041146.O9ZSxlLC-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240304/202403041146.O9ZSxlLC-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202403041146.O9ZSxlLC-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/fair.c:151:14: sparse: sparse: symbol 'sysctl_overload_detect_period' was not declared. Should it be static? kernel/sched/fair.c:152:14: sparse: sparse: symbol 'sysctl_offline_wait_interval' was not declared. Should it be static? kernel/sched/fair.c:1284:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_entity const *se @@ got struct sched_entity [noderef] __rcu * @@ kernel/sched/fair.c:1284:34: sparse: expected struct sched_entity const *se kernel/sched/fair.c:1284:34: sparse: got struct sched_entity [noderef] __rcu * kernel/sched/fair.c:13325:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:13325:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:13325:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:6038:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:6038:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:6038:22: sparse: struct task_struct * kernel/sched/fair.c:6780:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:6780:38: sparse: expected struct task_struct *curr kernel/sched/fair.c:6780:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:8163:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:8163:20: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:8163:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8478:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:8478:9: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/fair.c:8478:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8590:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:8590:38: sparse: expected struct task_struct *curr kernel/sched/fair.c:8590:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:8936:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:8936:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:8936:22: sparse: struct task_struct * >> kernel/sched/fair.c:8988:1: sparse: sparse: symbol 'qos_smt_expell_switch' was not declared. Should it be static? kernel/sched/fair.c:9122:51: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *sibling_p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:9122:51: sparse: expected struct task_struct *sibling_p kernel/sched/fair.c:9122:51: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:9127:30: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:9127:30: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:9127:30: sparse: struct task_struct * kernel/sched/fair.c:9205:48: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:9454:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:10525:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:11162:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:11162:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:11162:22: sparse: struct task_struct * kernel/sched/fair.c:12603:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12603:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12603:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:12260:44: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *sd_parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12260:44: sparse: expected struct sched_domain *sd_parent kernel/sched/fair.c:12260:44: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:12699:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12699:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12699:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c: note: in included file (through include/linux/rculist.h, include/linux/pid.h, include/linux/sched.h, ...): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true kernel/sched/fair.c: note: in included file: kernel/sched/sched.h:2182:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2182:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2182:25: sparse: struct task_struct * kernel/sched/sched.h:2346:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2346:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2346:9: sparse: struct task_struct * kernel/sched/sched.h:2346:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2346:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2346:9: sparse: struct task_struct * kernel/sched/sched.h:2182:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2182:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2182:25: sparse: struct task_struct * kernel/sched/sched.h:2182:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2182:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2182:25: sparse: struct task_struct * vim +/qos_smt_expell_switch +8988 kernel/sched/fair.c 8986 8987 #ifdef CONFIG_QOS_SCHED_SMT_EXPELLER > 8988 DEFINE_STATIC_KEY_TRUE(qos_smt_expell_switch); 8989 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS] KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU
by Liu Shixin 04 Mar '24

04 Mar '24

From: Sean Christopherson <seanjc(a)google.com> mainline inclusion from mainline-v5.13-rc1 commit 2ee3757424be7c1cd1d0bbfa6db29a7edd82a250 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I94VO4 CVE: CVE-2021-47061 -------------------------------- If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new null bus. Destroying devices before the bus is nullified could lead to use-after-free since readers expect the devices on their reference of the bus to remain valid. Fixes: f65886606c2d ("KVM: fix memory leak in kvm_io_bus_unregister_dev()") Cc: stable(a)vger.kernel.org Signed-off-by: Sean Christopherson <seanjc(a)google.com> Message-Id: <20210412222050.876100-2-seanjc(a)google.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Conflicts: virt/kvm/kvm_main.c Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> --- virt/kvm/kvm_main.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 5f4f222c991f..b65bff740c24 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -3878,7 +3878,13 @@ void kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, new_bus->dev_count--; memcpy(new_bus->range + i, bus->range + i + 1, (new_bus->dev_count - i) * sizeof(struct kvm_io_range)); - } else { + } + + rcu_assign_pointer(kvm->buses[bus_idx], new_bus); + synchronize_srcu_expedited(&kvm->srcu); + + /* Destroy the old bus _after_ installing the (null) bus. */ + if (!new_bus) { pr_err("kvm: failed to shrink bus, removing it completely\n"); for (j = 0; j < bus->dev_count; j++) { if (j == i) @@ -3887,8 +3893,6 @@ void kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, } } - rcu_assign_pointer(kvm->buses[bus_idx], new_bus); - synchronize_srcu_expedited(&kvm->srcu); kfree(bus); return; } -- 2.25.1

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[PATCH v1 OLK-6.6 0/4] kworker: Fix the problem of ipsan performance degradation
by jiangdongxu 04 Mar '24

04 Mar '24

From: shaodenghui <shaodenghui(a)huawei.com> When the current downstream FS tests IPSAN, it is found that the performance on ARM is much worse than that on X86, and the test data of IPSAN fluctuates greatly. After analysis, the reason is that when iscsi issues IO, the task is sent to kworker for processing by iscsi_xmitworker. The workqueue created by iscsi can automatically identify the CPU of the soft interrupt currently processed by iscsi, and automatically schedule the workqueue to the corresponding NUMA node. shaodenghui (3): iscsi: add member for NUMA aware order workqueue workqueue: implement NUMA affinity for single thread workqueue iscsi: use dynamic single thread workqueue to improve performance drivers/scsi/iscsi_tcp.c | 9 +++++++++ drivers/scsi/libiscsi.c | 17 ++++++++++++----- include/linux/workqueue.h | 1 + include/scsi/libiscsi.h | 1 + kernel/workqueue.c | 15 ++++++++++----- 5 files changed, 33 insertions(+), 10 deletions(-) -- 2.33.0

2 5

[PATCH v2 openEuler-1.0-LTS] media: dvbdev: Fix memory leak in dvb_media_device_free()
by Wenyu Huang 04 Mar '24

04 Mar '24

From: Peilin Ye <yepeilin.cs(a)gmail.com> stable inclusion from stable-4.19.308 commit cd89f79be5d553c78202f686e8e4caa5fbe94e98 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I949D9 CVE: CVE-2020-36777 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit bf9a40ae8d722f281a2721779595d6df1c33a0bf upstream. dvb_media_device_free() is leaking memory. Free `dvbdev->adapter->conn` before setting it to NULL, as documented in include/media/media-device.h: "The media_entity instance itself must be freed explicitly by the driver if required." Link: https://syzkaller.appspot.com/bug?id=9bbe4b842c98f0ed05c5eed77a226e9de33bf2… Link: https://lore.kernel.org/linux-media/20201211083039.521617-1-yepeilin.cs@gma… Cc: stable(a)vger.kernel.org Fixes: 0230d60e4661 ("[media] dvbdev: Add RF connector if needed") Reported-by: syzbot+7f09440acc069a0d38ac(a)syzkaller.appspotmail.com Signed-off-by: Peilin Ye <yepeilin.cs(a)gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wenyu Huang <huangwenyu5(a)huawei.com> --- drivers/media/dvb-core/dvbdev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c index a7d57ff7c88b..4b562238749d 100644 --- a/drivers/media/dvb-core/dvbdev.c +++ b/drivers/media/dvb-core/dvbdev.c @@ -242,6 +242,7 @@ static void dvb_media_device_free(struct dvb_device *dvbdev) if (dvbdev->adapter->conn) { media_device_unregister_entity(dvbdev->adapter->conn); + kfree(dvbdev->adapter->conn); dvbdev->adapter->conn = NULL; kfree(dvbdev->adapter->conn_pads); dvbdev->adapter->conn_pads = NULL; -- 2.34.1

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[PATCH openEuler-1.0-LTS 0/1] i2c: sprd: fix reference leak when pm_runtime_get_sync fails
by Liao Chen 04 Mar '24

04 Mar '24

Fix CVE-2020-36780 conflict: drivers/i2c/busses/i2c-sprd.c Qinglang Miao (1): i2c: sprd: fix reference leak when pm_runtime_get_sync fails drivers/i2c/busses/i2c-sprd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) -- 2.34.1

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[PATCH v1 OLK-6.6 0/4] kworker: Fix the problem of ipsan performance degradation on ARM architecture
by jiangdongxu 04 Mar '24

04 Mar '24

From: shaodenghui <shaodenghui(a)huawei.com> When the current downstream FS tests IPSAN, it is found that the performance on ARM is much worse than that on X86, and the test data of IPSAN fluctuates greatly. After analysis, the reason is that when iscsi issues IO, the task is sent to kworker for processing by iscsi_xmitworker. The workqueue created by iscsi can automatically identify the CPU of the soft interrupt currently processed by iscsi, and automatically schedule the workqueue to the corresponding NUMA node. shaodenghui (3): iscsi: add member for NUMA aware order workqueue workqueue: implement NUMA affinity for single thread workqueue iscsi: use dynamic single thread workqueue to improve performance drivers/scsi/iscsi_tcp.c | 9 +++++++++ drivers/scsi/libiscsi.c | 17 ++++++++++++----- include/linux/workqueue.h | 1 + include/scsi/libiscsi.h | 1 + kernel/workqueue.c | 15 ++++++++++----- 5 files changed, 33 insertions(+), 10 deletions(-) -- 2.33.0

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[PATCH openEuler-1.0-LTS] Input: appletouch - initialize work before device registration
by Jinjiang Tu 04 Mar '24

04 Mar '24

From: Pavel Skripkin <paskripkin(a)gmail.com> mainline inclusion from mainline-v5.16-rc8 commit 9f3ccdc3f6ef10084ceb3a47df0961bec6196fd0 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I947RI CVE: CVE-2021-46932 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Syzbot has reported warning in __flush_work(). This warning is caused by work->func == NULL, which means missing work initialization. This may happen, since input_dev->close() calls cancel_work_sync(&dev->work), but dev->work initalization happens _after_ input_register_device() call. So this patch moves dev->work initialization before registering input device Fixes: 5a6eb676d3bc ("Input: appletouch - improve powersaving for Geyser3 devices") Reported-and-tested-by: syzbot+b88c5eae27386b252bbd(a)syzkaller.appspotmail.com Signed-off-by: Pavel Skripkin <paskripkin(a)gmail.com> Link: https://lore.kernel.org/r/20211230141151.17300-1-paskripkin@gmail.com Cc: stable(a)vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov(a)gmail.com> Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> --- drivers/input/mouse/appletouch.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c index f1e66e257cff..e305a4f2b0f0 100644 --- a/drivers/input/mouse/appletouch.c +++ b/drivers/input/mouse/appletouch.c @@ -930,6 +930,8 @@ static int atp_probe(struct usb_interface *iface, set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit); set_bit(BTN_LEFT, input_dev->keybit); + INIT_WORK(&dev->work, atp_reinit); + error = input_register_device(dev->input); if (error) goto err_free_buffer; @@ -937,8 +939,6 @@ static int atp_probe(struct usb_interface *iface, /* save our data pointer in this interface device */ usb_set_intfdata(iface, dev); - INIT_WORK(&dev->work, atp_reinit); - return 0; err_free_buffer: -- 2.25.1

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