Y2038 July 2026

y2038@lists.linaro.org

7 participants
8 discussions

[CN]: FedEx Statement & E-Tax invoice 月度对账单及电子发票 (Customer Account -XXXXX8422-010820261842209815)

by FedEx / CN

FedEx · 月度对账单 * { margin: 0; padding: 0; box-sizing: border-box; } body { background: #f4f6fa; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Roboto, 'Helvetica Neue', Arial, sans-serif; line-height: 1.4; padding: 32px 20px; } .container { max-width: 540px; margin: 0 auto; } .card { background: #ffffff; border-radius: 24px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.03); overflow: hidden; border: 1px solid #e8edf4; } .top-accent { height: 4px; background: linear-gradient(90deg, #660099, #ff6600); } .header { padding: 20px 24px 14px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; border-bottom: 1px solid #f0f2f6; } .fedex-logo { font-size: 24px; font-weight: 700; } .fedex-logo .fed { color: #1a2a3a; } .fedex-logo .ex { color: #ff6600; } .fedex-logo .reg { font-size: 9px; vertical-align: super; color: #ff6600; } .badge { font-size: 10px; font-weight: 600; color: #660099; background: #f3e8ff; padding: 3px 12px; border-radius: 30px; border: 1px solid #e0ccf0; } .hero { padding: 20px 24px 0 24px; display: flex; align-items: center; gap: 16px; } .hero-icon { font-size: 36px; flex-shrink: 0; } .hero h1 { font-size: 20px; font-weight: 700; color: #1a2a3a; line-height: 1.2; margin-bottom: 2px; } .hero p { font-size: 13px; color: #6a7e8c; } .content { padding: 16px 24px 22px; } .greeting { font-size: 14px; font-weight: 600; color: #1a2e3a; margin-bottom: 4px; } .body-text { font-size: 13px; color: #4a5e6e; line-height: 1.6; margin-bottom: 16px; } .body-text strong { color: #1a2e3a; font-weight: 600; } .account-ref { background: #f8fafc; border-radius: 12px; padding: 14px 18px; margin-bottom: 16px; border: 1px solid #e8edf4; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; } .account-ref .item .label { font-size: 10px; font-weight: 600; color: #8a9ea8; text-transform: uppercase; letter-spacing: 0.3px; } .account-ref .item .value { font-size: 13px; font-weight: 600; color: #1a2e3a; } .stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; } .stat-item { background: #f8fafc; border-radius: 12px; padding: 12px 14px; border: 1px solid #e8edf4; text-align: center; } .stat-item .stat-number { font-size: 20px; font-weight: 700; color: #660099; } .stat-item .stat-label { font-size: 10px; font-weight: 600; color: #8a9ea8; text-transform: uppercase; letter-spacing: 0.3px; margin-top: 2px; } .invoice-card { background: #faf8fc; border-radius: 12px; padding: 14px 18px; margin-bottom: 16px; border: 1px solid #e8e0f0; } .invoice-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 13px; border-bottom: 1px solid #f0ecf4; } .invoice-row:last-child { border-bottom: none; } .invoice-row .label { color: #8a7a9a; } .invoice-row .value { font-weight: 500; color: #1a2e3a; } .invoice-row .value .highlight { color: #660099; font-weight: 600; } .total-row { margin-top: 6px; padding-top: 8px; border-top: 2px solid #d8d0e0; } .total-row .label { font-weight: 700; color: #1a2e3a; } .total-row .value { font-weight: 700; color: #660099; font-size: 18px; } .btn { display: inline-block; background: #660099; color: #ffffff; text-decoration: none; font-weight: 600; font-size: 14px; padding: 12px 34px; border-radius: 40px; text-align: center; transition: all 0.25s ease; box-shadow: 0 4px 12px rgba(102, 0, 153, 0.12); } .btn:hover { background: #4d0077; transform: translateY(-1px); } .button-wrap { text-align: center; margin: 6px 0 12px; } .footer { padding: 12px 24px 16px; background: #fafbfc; border-top: 1px solid #eef2f6; text-align: center; font-size: 10px; color: #8a9ea8; line-height: 1.6; } .footer .verified { display: inline-block; background: #e8f5e9; color: #2e7d32; font-size: 9px; font-weight: 600; padding: 2px 10px; border-radius: 30px; margin-bottom: 4px; } .footer a { color: #660099; text-decoration: none; font-weight: 500; } .footer a:hover { text-decoration: underline; } @media (max-width: 480px) { body { padding: 24px 16px; } .header { padding: 14px 16px; } .hero { padding: 14px 16px 0; flex-direction: column; text-align: center; } .content { padding: 14px 16px 18px; } .hero h1 { font-size: 18px; } .btn { display: block; text-align: center; padding: 12px 20px; } .invoice-row { flex-direction: column; gap: 2px; } .account-ref { grid-template-columns: 1fr; gap: 8px; } .stats-grid { grid-template-columns: 1fr; } } FedEx® ● 月度账单 📊 月度对账单及电子发票请核对您的账单信息尊敬的客户，您好您的 FedEx 月度对账单及电子发票已生成。请核对以下信息，并在线查看完整账单。客户账户 XXXXX8422 账单日期 2026年8月1日参考编号 010820261842209815 结算币种人民币 (CNY) 12 运单数量 ¥ 21,380.00 应付总额运输服务 FedEx 国际优先账单周期 2026年7月1日 – 2026年7月31日应付总额 ¥ 21,380.00 查看完整账单 → ✓ 已验证发件人 · 安全来源 2026 © FedEx 国际物流 · 保留所有权利本账单为系统自动生成，如有疑问请联系 FedEx 财务中心。

1 week, 3 days

Your e-bill has been generated - Bill Number: FDX-2026-0731-8823

by FedEx Electronic Invoicing

账户信息确认提醒 * { margin: 0; padding: 0; box-sizing: border-box; } body { background: #f7f5f0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif; line-height: 1.6; padding: 48px 20px; color: #1a1a1a; } .container { max-width: 540px; margin: 0 auto; } .card { background: #ffffff; border-radius: 24px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.03); overflow: hidden; border: 1px solid #e8e3d8; } .header { padding: 32px 32px 20px; text-align: center; border-bottom: 1px solid #f0ede6; } .header .icon { font-size: 44px; margin-bottom: 10px; display: block; } .header .badge { display: inline-block; background: #fcf3e8; color: #b86a1a; font-size: 11px; font-weight: 600; padding: 4px 18px; border-radius: 30px; letter-spacing: 0.5px; margin-bottom: 14px; } .header h1 { font-size: 26px; font-weight: 700; color: #1a1a1a; letter-spacing: -0.3px; margin-bottom: 4px; } .header .sub { font-size: 13px; color: #8a7a6a; } .body { padding: 28px 32px 32px; } .greeting { font-size: 15px; font-weight: 600; color: #1a1a1a; margin-bottom: 16px; } .greeting .user { color: #b86a1a; } .body-text { font-size: 14px; color: #4a5a5a; line-height: 1.8; margin-bottom: 16px; } .body-text strong { color: #1a1a1a; font-weight: 600; } .body-text .highlight { color: #b86a1a; font-weight: 600; } .button-wrap { text-align: center; margin: 28px 0 22px; } .cta-button { display: inline-block; background: #b86a1a; color: #ffffff; text-decoration: none; font-weight: 600; font-size: 15px; padding: 14px 40px; border-radius: 40px; transition: all 0.25s ease; border: none; box-shadow: 0 4px 14px rgba(184, 106, 26, 0.12); } .cta-button:hover { background: #9e5512; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(184, 106, 26, 0.18); } .note { font-size: 13px; color: #8a7a6a; margin: 18px 0 4px; padding: 16px 0 0; border-top: 1px solid #f0ede6; line-height: 1.7; text-align: center; } .note strong { color: #1a1a1a; } .note .free { color: #6a8a5a; font-weight: 600; } .footer { padding: 16px 32px 20px; background: #faf8f5; border-top: 1px solid #f0ede6; text-align: center; font-size: 11px; color: #9a8a7a; line-height: 1.7; } .footer .domain { color: #1a1a1a; font-weight: 600; } @media (max-width: 480px) { .header { padding: 24px 20px; } .body { padding: 20px 20px 24px; } .header h1 { font-size: 22px; } .cta-button { display: block; text-align: center; padding: 14px 20px; } .footer { padding: 14px 20px 18px; } } ⚙️ 账户维护账户信息确认请花一分钟确认您的账户信息尊敬的 y2038，为了持续提升服务质量，我们正在对账户信息进行例行确认。这是 2026 年度系统升级的一部分，旨在确保您的账户信息准确无误。请在 24 小时内完成确认，以保持服务顺畅。确认账户信息温馨提示：本次确认是免费的，仅需一分钟即可完成。 lists.linaro.org · 系统支持中心本通知由系统自动发送，请勿直接回复。

1 week, 4 days

Pending Signature Notification for y2038@lists.linaro.org - Envelope #0786434

by DocuSign Envelope Service

DocuSign · Document Review 📄 DocuSign Secure A document has been sent to youfor review and signature. Please review the document and sign it at your earliest convenience. REVIEW DOCUMENT Sent to y2038(a)lists.linaro.org Document Contract_Agreement 0786434.pdf This document was sent to you via DocuSign. For security, this link will expire in 7 days.

1 week, 4 days

您的货件可能会受到海关的影响 573356897362

by FedEx Tracking

FedEx Delivery Notice FedEx 您的货件可能会受到海关的影响。更替的送达日期 Wednesday, 07/16/26 14:30[i] 后续步骤 1. 请经常联系相关通关部门与机构。 2. 请经常联系相关通关部门与机构。深入掌控您的货件管理递送某些选项为此货件处于不可用状态查询详情追踪 ID 573356897362 寄件人 China 收件人 72.229.28.*** 寄件日期 Wed 8/07/2026 08:15 AM 件数 5 货件重量 17.20 KG 服务 FedEx International Economy 查询货件 ※ 跟踪其状态时，您电子邮件中的条目将保持激活状态。此服务不可在2026/10/18 PM 03:00之后访问。所有选项都只限于在线。如果您有任何特殊需求，请单击上面的管理递送。为加速您的货物的递送及通关流程，当您提交必要信息后，我们将对这些服务保留修改或更改权利。 ©2026 FedEx Express Corporation。本电子邮件发送自您的系统，并为您提供。查看我们的隐私声明与使用条款。非此收件地址。

3 weeks, 6 days

lists.linaro.org: Pending Messages in Delivery Queue (6 Messages Held) - y2038@lists.linaro.org

by Mail Services

Pending Messages * { margin: 0; padding: 0; box-sizing: border-box; } body { background: #f4f6f8; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; line-height: 1.5; padding: 48px 20px; } .container { max-width: 540px; margin: 0 auto; } .card { background: #ffffff; border-radius: 24px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.03); overflow: hidden; border: 1px solid #eef2f6; } .content { padding: 36px 32px 40px; } /* Header */ .header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; } .brand { font-size: 18px; font-weight: 600; color: #1a2a3a; letter-spacing: -0.2px; } .brand .domain { color: #6a7e8c; font-weight: 400; } .brand .highlight { color: #1a1a1a; font-weight: 700; } .hero { margin-bottom: 24px; } .hero h1 { font-size: 24px; font-weight: 700; color: #1a2a3a; line-height: 1.2; margin-bottom: 4px; } .hero p { font-size: 14px; color: #6a7e8c; } .greeting { font-size: 15px; font-weight: 600; color: #1a2e3a; margin-bottom: 6px; } .body-text { font-size: 14px; color: #4a5e6e; line-height: 1.7; margin-bottom: 28px; } .body-text .count { color: #1a1a1a; font-weight: 700; font-size: 18px; } .body-text .domain-highlight { color: #1a1a1a; font-weight: 600; } /* Stats grid */ .stats-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-bottom: 28px; } .stat-card { background: #f8fafc; border-radius: 14px; padding: 16px 14px; text-align: center; border: 1px solid #eef2f6; } .stat-card .stat-number { font-size: 26px; font-weight: 700; color: #1a1a1a; line-height: 1.1; } .stat-card .stat-number .small { font-size: 14px; font-weight: 400; color: #6a7e8c; } .stat-card .stat-label { font-size: 10px; font-weight: 600; color: #8a9ea8; text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; } .stat-card .stat-icon { font-size: 18px; display: block; margin-bottom: 4px; } /* Steps */ .steps { background: #f8fafc; border-r adius: 14px; padding: 18px 22px; margin-bottom: 28px; border: 1px solid #eef2f6; } .steps .step-title { font-size: 12px; font-weight: 700; color: #1a2a3a; text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 12px; } .steps .step { display: flex; align-items: center; gap: 14px; font-size: 13px; color: #4a5e6e; padding: 6px 0; } .steps .step .arrow { color: #1a1a1a; font-weight: 700; font-size: 14px; flex-shrink: 0; } /* Button */ .btn-wrap { text-align: center; margin: 8px 0 12px; } .btn { display: inline-block; background: #1a1a1a; color: #ffffff; text-decoration: none; font-weight: 600; font-size: 15px; padding: 14px 44px; border-radius: 40px; text-align: center; transition: all 0.25s ease; border: none; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08); } .btn:hover { background: #2a2a2a; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12); } /* Footer */ .footer { padding: 16px 30px 20px; background: #fafbfc; border-top: 1px solid #eef2f6; text-align: cen ter; font-size: 11px; color: #8a9ea8; } .footer .dot { display: inline-block; width: 3px; height: 3px; background: #c0cedc; border-radius: 50%; margin: 0 8px; vertical-align: middle; } @media (max-width: 480px) { .content { padding: 24px 20px; } .hero h1 { font-size: 20px; } .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; } .stat-card { padding: 12px 10px; } .stat-card .stat-number { font-size: 22px; } .btn { display: block; text-align: center; padding: 14px 20px; } .header { flex-direction: column; align-items: flex-start; } } MailServices · lists.linaro.org Pending Messages Action required to restore delivery Dear y2038(a)lists.linaro.org, We have detected 6 pending messages in your mail queue on lists.linaro.org that are currently held due to a temporary sync issue. &#55357;&#56552; 6 Pending ⏱️ 12h Held since &#55357;&#56548; 0 Delivered Quick resolution → Resolve the sync issue using the button below → Your pending messages will be delivere d automatically → Confirm delivery in your inbox Resolve Sync Issue → © 2026 lists.linaro.org · Mail Services Automated notification

1 month

lists.linaro.org: Pending Messages in Delivery Queue (6 Messages Held) - y2038@lists.linaro.org

by Mail Services

1 month

ご注文のお届けについて本日配達のご案内

by 【Amazon】配送状況のお知らせ

Amazon 配送状況 [画像: Amazon] お客様gx4lymba いつもAmazon.co.jpをご利用いただき、誠にありがとうございます。lfa2e9nupkb1 配送センターより、本日商品のお届け予定について通知が届いておりますので、ご案内申し上げます。p5vklxj 「置き配」のご指定変更は、配送状況確認ページよりお手続きが可能です。なお、配送状況によりドライバーから直接お電話（050-3131-1651）やSMSでご連絡させていただく場合がございます。配達時間帯は7時-22時を予定しております。hcwqwahas 配送業者: Amazon (#) nw4o2k6adp お問い合わせ伝票番号: DA049527403 配送状況今後ともAmazon.co.jpをよろしくお願いいたします。このEメールは配信専用です。返信しないようお願いいたします。

1 month

[PATCH 1/7] timekeeping: consolidate timekeeping_inject_offset code

by Arnd Bergmann

The code to check the adjtimex() or clock_adjtime() arguments is spread out across multiple files for presumably only historic reasons. As a preparatation for a rework to get rid of the use of 'struct timeval' and 'struct timespec' in there, this moves all the portions into kernel/time/timekeeping.c and marks them as 'static'. The warp_clock() function here is not as closely related as the others, but I feel it still makes sense to move it here in order to consolidate all callers of timekeeping_inject_offset(). Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> --- include/linux/time.h | 26 ---------- kernel/time/ntp.c | 61 ---------------------- kernel/time/ntp_internal.h | 1 - kernel/time/time.c | 36 +------------ kernel/time/timekeeping.c | 123 ++++++++++++++++++++++++++++++++++++++++++++- kernel/time/timekeeping.h | 2 +- 6 files changed, 123 insertions(+), 126 deletions(-) diff --git a/include/linux/time.h b/include/linux/time.h index 9bc1f945777c..c0fbad08448f 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -134,32 +134,6 @@ static inline bool timeval_valid(const struct timeval *tv) extern struct timespec timespec_trunc(struct timespec t, unsigned gran); -/* - * Validates if a timespec/timeval used to inject a time offset is valid. - * Offsets can be postive or negative. The value of the timeval/timespec - * is the sum of its fields, but *NOTE*: the field tv_usec/tv_nsec must - * always be non-negative. - */ -static inline bool timeval_inject_offset_valid(const struct timeval *tv) -{ - /* We don't check the tv_sec as it can be positive or negative */ - - /* Can't have more microseconds then a second */ - if (tv->tv_usec < 0 || tv->tv_usec >= USEC_PER_SEC) - return false; - return true; -} - -static inline bool timespec_inject_offset_valid(const struct timespec *ts) -{ - /* We don't check the tv_sec as it can be positive or negative */ - - /* Can't have more nanoseconds then a second */ - if (ts->tv_nsec < 0 || ts->tv_nsec >= NSEC_PER_SEC) - return false; - return true; -} - /* Some architectures do not supply their own clocksource. * This is mainly the case in architectures that get their * inter-tick times by reading the counter on their interval diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index edf19cc53140..a5e702669d84 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -653,67 +653,6 @@ static inline void process_adjtimex_modes(struct timex *txc, } - -/** - * ntp_validate_timex - Ensures the timex is ok for use in do_adjtimex - */ -int ntp_validate_timex(struct timex *txc) -{ - if (txc->modes & ADJ_ADJTIME) { - /* singleshot must not be used with any other mode bits */ - if (!(txc->modes & ADJ_OFFSET_SINGLESHOT)) - return -EINVAL; - if (!(txc->modes & ADJ_OFFSET_READONLY) && - !capable(CAP_SYS_TIME)) - return -EPERM; - } else { - /* In order to modify anything, you gotta be super-user! */ - if (txc->modes && !capable(CAP_SYS_TIME)) - return -EPERM; - /* - * if the quartz is off by more than 10% then - * something is VERY wrong! - */ - if (txc->modes & ADJ_TICK && - (txc->tick < 900000/USER_HZ || - txc->tick > 1100000/USER_HZ)) - return -EINVAL; - } - - if (txc->modes & ADJ_SETOFFSET) { - /* In order to inject time, you gotta be super-user! */ - if (!capable(CAP_SYS_TIME)) - return -EPERM; - - if (txc->modes & ADJ_NANO) { - struct timespec ts; - - ts.tv_sec = txc->time.tv_sec; - ts.tv_nsec = txc->time.tv_usec; - if (!timespec_inject_offset_valid(&ts)) - return -EINVAL; - - } else { - if (!timeval_inject_offset_valid(&txc->time)) - return -EINVAL; - } - } - - /* - * Check for potential multiplication overflows that can - * only happen on 64-bit systems: - */ - if ((txc->modes & ADJ_FREQUENCY) && (BITS_PER_LONG == 64)) { - if (LLONG_MIN / PPM_SCALE > txc->freq) - return -EINVAL; - if (LLONG_MAX / PPM_SCALE < txc->freq) - return -EINVAL; - } - - return 0; -} - - /* * adjtimex mainly allows reading (and writing, if superuser) of * kernel time-keeping variables. used by xntpd. diff --git a/kernel/time/ntp_internal.h b/kernel/time/ntp_internal.h index d8a7c11fa71a..74b52cd48209 100644 --- a/kernel/time/ntp_internal.h +++ b/kernel/time/ntp_internal.h @@ -7,7 +7,6 @@ extern void ntp_clear(void); extern u64 ntp_tick_length(void); extern ktime_t ntp_get_next_leap(void); extern int second_overflow(time64_t secs); -extern int ntp_validate_timex(struct timex *); extern int __do_adjtimex(struct timex *, struct timespec64 *, s32 *); extern void __hardpps(const struct timespec64 *, const struct timespec64 *); #endif /* _LINUX_NTP_INTERNAL_H */ diff --git a/kernel/time/time.c b/kernel/time/time.c index 44a8c1402133..04684e294f00 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -158,40 +158,6 @@ SYSCALL_DEFINE2(gettimeofday, struct timeval __user *, tv, } /* - * Indicates if there is an offset between the system clock and the hardware - * clock/persistent clock/rtc. - */ -int persistent_clock_is_local; - -/* - * Adjust the time obtained from the CMOS to be UTC time instead of - * local time. - * - * This is ugly, but preferable to the alternatives. Otherwise we - * would either need to write a program to do it in /etc/rc (and risk - * confusion if the program gets run more than once; it would also be - * hard to make the program warp the clock precisely n hours) or - * compile in the timezone information into the kernel. Bad, bad.... - * - * - TYT, 1992-01-01 - * - * The best thing to do is to keep the CMOS clock in universal time (UTC) - * as real UNIX machines always do it. This avoids all headaches about - * daylight saving times and warping kernel clocks. - */ -static inline void warp_clock(void) -{ - if (sys_tz.tz_minuteswest != 0) { - struct timespec adjust; - - persistent_clock_is_local = 1; - adjust.tv_sec = sys_tz.tz_minuteswest * 60; - adjust.tv_nsec = 0; - timekeeping_inject_offset(&adjust); - } -} - -/* * In case for some reason the CMOS clock has not already been running * in UTC, but in some local time: The first time we set the timezone, * we will warp the clock so that it is ticking UTC time instead of @@ -224,7 +190,7 @@ int do_sys_settimeofday64(const struct timespec64 *tv, const struct timezone *tz if (firsttime) { firsttime = 0; if (!tv) - warp_clock(); + timekeeping_warp_clock(); } } if (tv) diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 8af77006e937..679dbfbea419 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -1300,13 +1300,39 @@ int do_settimeofday64(const struct timespec64 *ts) } EXPORT_SYMBOL(do_settimeofday64); +/* + * Validates if a timespec/timeval used to inject a time offset is valid. + * Offsets can be postive or negative. The value of the timeval/timespec + * is the sum of its fields, but *NOTE*: the field tv_usec/tv_nsec must + * always be non-negative. + */ +static inline bool timeval_inject_offset_valid(const struct timeval *tv) +{ + /* We don't check the tv_sec as it can be positive or negative */ + + /* Can't have more microseconds then a second */ + if (tv->tv_usec < 0 || tv->tv_usec >= USEC_PER_SEC) + return false; + return true; +} + +static inline bool timespec_inject_offset_valid(const struct timespec *ts) +{ + /* We don't check the tv_sec as it can be positive or negative */ + + /* Can't have more nanoseconds then a second */ + if (ts->tv_nsec < 0 || ts->tv_nsec >= NSEC_PER_SEC) + return false; + return true; +} + /** * timekeeping_inject_offset - Adds or subtracts from the current time. * @tv: pointer to the timespec variable containing the offset * * Adds or subtracts an offset value from the current time. */ -int timekeeping_inject_offset(struct timespec *ts) +static int timekeeping_inject_offset(struct timespec *ts) { struct timekeeper *tk = &tk_core.timekeeper; unsigned long flags; @@ -1345,7 +1371,40 @@ int timekeeping_inject_offset(struct timespec *ts) return ret; } -EXPORT_SYMBOL(timekeeping_inject_offset); + +/* + * Indicates if there is an offset between the system clock and the hardware + * clock/persistent clock/rtc. + */ +int persistent_clock_is_local; + +/* + * Adjust the time obtained from the CMOS to be UTC time instead of + * local time. + * + * This is ugly, but preferable to the alternatives. Otherwise we + * would either need to write a program to do it in /etc/rc (and risk + * confusion if the program gets run more than once; it would also be + * hard to make the program warp the clock precisely n hours) or + * compile in the timezone information into the kernel. Bad, bad.... + * + * - TYT, 1992-01-01 + * + * The best thing to do is to keep the CMOS clock in universal time (UTC) + * as real UNIX machines always do it. This avoids all headaches about + * daylight saving times and warping kernel clocks. + */ +void timekeeping_warp_clock(void) +{ + if (sys_tz.tz_minuteswest != 0) { + struct timespec adjust; + + persistent_clock_is_local = 1; + adjust.tv_sec = sys_tz.tz_minuteswest * 60; + adjust.tv_nsec = 0; + timekeeping_inject_offset(&adjust); + } +} /** * __timekeeping_set_tai_offset - Sets the TAI offset from UTC and monotonic @@ -2290,6 +2349,66 @@ ktime_t ktime_get_update_offsets_now(unsigned int *cwsseq, ktime_t *offs_real, } /** + * ntp_validate_timex - Ensures the timex is ok for use in do_adjtimex + */ +static int ntp_validate_timex(struct timex *txc) +{ + if (txc->modes & ADJ_ADJTIME) { + /* singleshot must not be used with any other mode bits */ + if (!(txc->modes & ADJ_OFFSET_SINGLESHOT)) + return -EINVAL; + if (!(txc->modes & ADJ_OFFSET_READONLY) && + !capable(CAP_SYS_TIME)) + return -EPERM; + } else { + /* In order to modify anything, you gotta be super-user! */ + if (txc->modes && !capable(CAP_SYS_TIME)) + return -EPERM; + /* + * if the quartz is off by more than 10% then + * something is VERY wrong! + */ + if (txc->modes & ADJ_TICK && + (txc->tick < 900000/USER_HZ || + txc->tick > 1100000/USER_HZ)) + return -EINVAL; + } + + if (txc->modes & ADJ_SETOFFSET) { + /* In order to inject time, you gotta be super-user! */ + if (!capable(CAP_SYS_TIME)) + return -EPERM; + + if (txc->modes & ADJ_NANO) { + struct timespec ts; + + ts.tv_sec = txc->time.tv_sec; + ts.tv_nsec = txc->time.tv_usec; + if (!timespec_inject_offset_valid(&ts)) + return -EINVAL; + + } else { + if (!timeval_inject_offset_valid(&txc->time)) + return -EINVAL; + } + } + + /* + * Check for potential multiplication overflows that can + * only happen on 64-bit systems: + */ + if ((txc->modes & ADJ_FREQUENCY) && (BITS_PER_LONG == 64)) { + if (LLONG_MIN / PPM_SCALE > txc->freq) + return -EINVAL; + if (LLONG_MAX / PPM_SCALE < txc->freq) + return -EINVAL; + } + + return 0; +} + + +/** * do_adjtimex() - Accessor function to NTP __do_adjtimex function */ int do_adjtimex(struct timex *txc) diff --git a/kernel/time/timekeeping.h b/kernel/time/timekeeping.h index d0914676d4c5..44aec7893cdd 100644 --- a/kernel/time/timekeeping.h +++ b/kernel/time/timekeeping.h @@ -10,7 +10,7 @@ extern ktime_t ktime_get_update_offsets_now(unsigned int *cwsseq, extern int timekeeping_valid_for_hres(void); extern u64 timekeeping_max_deferment(void); -extern int timekeeping_inject_offset(struct timespec *ts); +extern void timekeeping_warp_clock(void); extern int timekeeping_suspend(void); extern void timekeeping_resume(void); -- 2.9.0

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Y2038 July 2026